diff --git a/forge-ai/src/main/java/forge/ai/ComputerUtil.java b/forge-ai/src/main/java/forge/ai/ComputerUtil.java
index 8a8a4734bed..02f4d0fe1a0 100644
--- a/forge-ai/src/main/java/forge/ai/ComputerUtil.java
+++ b/forge-ai/src/main/java/forge/ai/ComputerUtil.java
@@ -716,7 +716,6 @@ public class ComputerUtil {
         CardCollection remaining = new CardCollection(cardlist);
         final CardCollection sacrificed = new CardCollection();
         final Card host = source.getHostCard();
-        final boolean considerSacLogic = "ConsiderSac".equals(source.getParam("AILogic"));
         final int considerSacThreshold = getAIPreferenceParameter(host, "CreatureEvalThreshold");
 
         if ("OpponentOnly".equals(source.getParam("AILogic"))) {
@@ -732,14 +731,14 @@ public class ComputerUtil {
                 if (!ai.canLoseLife() || ai.cantLose()) {
                     return sacrificed; // sacrifice none
                 }
-            } else if (!considerSacLogic) {
+            } else {
                 return sacrificed; // sacrifice none
             }
         }
         boolean exceptSelf = "ExceptSelf".equals(source.getParam("AILogic"));
         boolean removedSelf = false;
 
-        if (isOptional && source.hasParam("Devour") || source.hasParam("Exploit") || considerSacLogic) {
+        if (isOptional && source.hasParam("Devour") || source.hasParam("Exploit")) {
             if (source.hasParam("Exploit")) {
                 for (Trigger t : host.getTriggers()) {
                     if (t.getMode() == TriggerType.Exploited) {
@@ -761,17 +760,21 @@ public class ComputerUtil {
                 public boolean apply(final Card c) {
                     int sacThreshold = 190;
 
-                    if ("HeartPiercer".equals(source.getParam("SacrificeParam"))) {
-                        if (c.getNetPower() == 0) {
+                    String logic = source.getParamOrDefault("AILogic", "");
+                    if (logic.startsWith("SacForDamage")) {
+                        if (c.getNetPower() <= 0) {
                             return false;
                         } else if (c.getNetPower() >= ai.getOpponentsSmallestLifeTotal()) {
                             return true;
+                        } else if (logic.endsWith(".GiantX2") && c.getType().hasCreatureType("Giant")
+                                && c.getNetPower() * 2 >= ai.getOpponentsSmallestLifeTotal()) {
+                            return true; // TODO: generalize this for any type and actually make the AI prefer giants?
                         }
                     }
 
                     if ("DesecrationDemon".equals(source.getParam("AILogic"))) {
                         sacThreshold = SpecialCardAi.DesecrationDemon.getSacThreshold();
-                    } else if (considerSacLogic && considerSacThreshold != -1) {
+                    } else if (considerSacThreshold != -1) {
                         sacThreshold = considerSacThreshold;
                     }
 
diff --git a/forge-ai/src/main/java/forge/ai/SpellApiToAi.java b/forge-ai/src/main/java/forge/ai/SpellApiToAi.java
index 81fa2071d21..7991dbd62ab 100644
--- a/forge-ai/src/main/java/forge/ai/SpellApiToAi.java
+++ b/forge-ai/src/main/java/forge/ai/SpellApiToAi.java
@@ -91,7 +91,7 @@ public enum SpellApiToAi {
             .put(ApiType.GenericChoice, ChooseGenericEffectAi.class)
             .put(ApiType.Goad, GoadAi.class)
             .put(ApiType.Haunt, HauntAi.class)
-            .put(ApiType.ImmediateTrigger, AlwaysPlayAi.class)
+            .put(ApiType.ImmediateTrigger, DelayedTriggerAi.class)
             .put(ApiType.Investigate, InvestigateAi.class)
             .put(ApiType.LoseLife, LifeLoseAi.class)
             .put(ApiType.LosesGame, GameLossAi.class)
diff --git a/forge-ai/src/main/java/forge/ai/ability/ImmediateTriggerAi.java b/forge-ai/src/main/java/forge/ai/ability/ImmediateTriggerAi.java
new file mode 100644
index 00000000000..2619018d4bc
--- /dev/null
+++ b/forge-ai/src/main/java/forge/ai/ability/ImmediateTriggerAi.java
@@ -0,0 +1,69 @@
+package forge.ai.ability;
+
+import forge.ai.*;
+import forge.game.ability.AbilityFactory;
+import forge.game.player.Player;
+import forge.game.spellability.AbilitySub;
+import forge.game.spellability.SpellAbility;
+
+public class ImmediateTriggerAi extends SpellAbilityAi {
+    // TODO: this class is largely reused from DelayedTriggerAi, consider updating
+
+    @Override
+    public boolean chkAIDrawback(SpellAbility sa, Player ai) {
+        String logic = sa.getParamOrDefault("AILogic", "");
+        if (logic.equals("Always")) {
+            return true;
+        }
+
+        SpellAbility trigsa = null;
+        if (sa.hasAdditionalAbility("Execute")) {
+            trigsa = sa.getAdditionalAbility("Execute");
+        } else {
+            trigsa = AbilityFactory.getAbility(sa.getHostCard(), sa.getParam("Execute"));
+        }
+        trigsa.setActivatingPlayer(ai);
+
+        if (trigsa instanceof AbilitySub) {
+            return SpellApiToAi.Converter.get(trigsa.getApi()).chkDrawbackWithSubs(ai, (AbilitySub)trigsa);
+        } else {
+            return AiPlayDecision.WillPlay == ((PlayerControllerAi)ai.getController()).getAi().canPlaySa(trigsa);
+        }
+    }
+
+    @Override
+    protected boolean doTriggerAINoCost(Player ai, SpellAbility sa, boolean mandatory) {
+        SpellAbility trigsa = null;
+        if (sa.hasAdditionalAbility("Execute")) {
+            trigsa = sa.getAdditionalAbility("Execute");
+        } else {
+            trigsa = AbilityFactory.getAbility(sa.getHostCard(), sa.getParam("Execute"));
+        }
+        AiController aic = ((PlayerControllerAi)ai.getController()).getAi();
+        trigsa.setActivatingPlayer(ai);
+
+        if (!sa.hasParam("OptionalDecider")) {
+            return aic.doTrigger(trigsa, true);
+        } else {
+            return aic.doTrigger(trigsa, !sa.getParam("OptionalDecider").equals("You"));
+        }
+    }
+
+    @Override
+    protected boolean canPlayAI(Player ai, SpellAbility sa) {
+        String logic = sa.getParamOrDefault("AILogic", "");
+        if (logic.equals("Always")) {
+            return true;
+        }
+
+        SpellAbility trigsa = null;
+        if (sa.hasAdditionalAbility("Execute")) {
+            trigsa = sa.getAdditionalAbility("Execute");
+        } else {
+            trigsa = AbilityFactory.getAbility(sa.getHostCard(), sa.getParam("Execute"));
+        }
+        trigsa.setActivatingPlayer(ai);
+        return AiPlayDecision.WillPlay == ((PlayerControllerAi)ai.getController()).getAi().canPlaySa(trigsa);
+    }
+
+}
diff --git a/forge-game/src/main/java/forge/game/trigger/WrappedAbility.java b/forge-game/src/main/java/forge/game/trigger/WrappedAbility.java
index 28ba3cbdda8..80eb4a62da5 100644
--- a/forge-game/src/main/java/forge/game/trigger/WrappedAbility.java
+++ b/forge-game/src/main/java/forge/game/trigger/WrappedAbility.java
@@ -17,7 +17,6 @@ import java.util.Map.Entry;
 import java.util.Set;
 
 import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 
 // Wrapper ability that checks the requirements again just before
@@ -487,18 +486,6 @@ public class WrappedAbility extends Ability {
             return;
         }
 
-        // Check timestamps of triggered objects
-        final List<Object> original = Lists.newArrayList(sa.getTriggerRemembered());
-        for (Object o : original) {
-            if (o instanceof Card) {
-                Card card = (Card) o;
-                Card current = game.getCardState(card);
-                if (current.getTimestamp() != card.getTimestamp()) {
-                    // TODO: figure out if NoTimestampCheck should be the default for ChangesZone triggers
-                    sa.getTriggerRemembered().remove(o);
-                }
-            }
-        }
         final Map<AbilityKey, Object> triggerMap = AbilityKey.newMap(sa.getTriggeringObjects());
         for (Entry<AbilityKey, Object> ev : triggerMap.entrySet()) {
             if (ev.getValue() instanceof Card) {
diff --git a/forge-gui/res/cardsfolder/h/heart_piercer_manticore.txt b/forge-gui/res/cardsfolder/h/heart_piercer_manticore.txt
index 68b9bfc0e31..219317eb072 100644
--- a/forge-gui/res/cardsfolder/h/heart_piercer_manticore.txt
+++ b/forge-gui/res/cardsfolder/h/heart_piercer_manticore.txt
@@ -2,13 +2,11 @@ Name:Heart-Piercer Manticore
 ManaCost:2 R R
 Types:Creature Manticore
 PT:4/3
-T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self | TriggerZones$ Battlefield | Execute$ TrigSacrifice | TriggerDescription$ When CARDNAME enters the battlefield, you may sacrifice another creature. When you do, CARDNAME deals damage equal to that creature's power to target creature or player.
-SVar:TrigSacrifice:DB$ Sacrifice | Optional$ True | SacValid$ Creature.Other | SacMessage$ another Creature | Amount$ 1 | AILogic$ ConsiderSac | RememberSacrificed$ True | SubAbility$ DBTrigger
-SVar:DBTrigger:DB$ ImmediateTrigger | Execute$ TrigDamage | RememberObjects$ RememberedCard | ConditionDefined$ Remembered | ConditionPresent$ Card | SubAbility$ DBCleanup | TriggerDescription$ When you do, CARDNAME deals damage equal to that creature's power to any target.
+T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self | TriggerZones$ Battlefield | Execute$ DBTrigger | TriggerDescription$ When CARDNAME enters the battlefield, you may sacrifice another creature. When you do, CARDNAME deals damage equal to that creature's power to target creature or player.
+SVar:DBTrigger:AB$ ImmediateTrigger | Cost$ Sac<1/Creature.Other/another creature> | Execute$ TrigDamage | AILogic$ SacForDamage | RememberObjects$ Sacrificed | TriggerDescription$ When you do, CARDNAME deals damage equal to that creature's power to any target.
 SVar:TrigDamage:DB$ DealDamage | ValidTgts$ Creature,Player,Planeswalker | TgtPrompt$ Select any target | NumDmg$ XPower | References$ XPower
-SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
 K:Embalm:5 R
 SVar:XPower:TriggerRemembered$CardPower
 SVar:AIPreferenceParams:CreatureEvalThreshold$ 200
-SVar:DeckHas:Ability$Token
+DeckHas:Ability$Token & Ability$Sacrifice
 Oracle:When Heart-Piercer Manticore enters the battlefield, you may sacrifice another creature. When you do, Heart-Piercer Manticore deals damage equal to that creature's power to any target.\nEmbalm {5} {R} ({5} {R}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Manticore with no mana cost. Embalm only as a sorcery.)
diff --git a/forge-gui/res/cardsfolder/upcoming/surtland_flinger.txt b/forge-gui/res/cardsfolder/upcoming/surtland_flinger.txt
new file mode 100644
index 00000000000..923ece0cbed
--- /dev/null
+++ b/forge-gui/res/cardsfolder/upcoming/surtland_flinger.txt
@@ -0,0 +1,15 @@
+Name:Surtland Flinger
+ManaCost:3 R R
+Types:Creature Giant Berserker
+PT:4/6
+T:Mode$ Attacks | ValidCard$ Card.Self | Execute$ TrigImmediate | TriggerDescription$ Whenever CARDNAME attacks, you may sacrifice another creature. When you do, CARDNAME deals damage equal to the sacrificed creature's power to any target. If the sacrificed creature was a Giant, CARDNAME deals twice that much damage instead.
+SVar:TrigImmediate:AB$ ImmediateTrigger | Cost$ Sac<1/Creature.Other/another creature> | RememberObjects$ Sacrificed | Execute$ TrigDamage | AILogic$ SacForDamage.GiantX2 | TriggerDescription$ When you do, CARDNAME deals damage equal to the sacrificed creature's power to any target. If the sacrificed creature was a Giant, CARDNAME deals twice that much damage instead.
+SVar:TrigDamage:DB$ DealDamage | ConditionDefined$ DelayTriggerRememberedLKI | ConditionPresent$ Giant | ConditionCompare$ EQ0 | ValidTgts$ Creature,Player,Planeswalker | TgtPrompt$ Select any target | NumDmg$ X | References$ X | SubAbility$ DBGiantDamage
+SVar:DBGiantDamage:DB$ DealDamage | ConditionDefined$ DelayTriggerRememberedLKI | ConditionPresent$ Giant | ConditionCompare$ GE1 | Defined$ Targeted | NumDmg$ Y | References$ Y
+SVar:X:TriggerRemembered$CardPower
+SVar:Y:TriggerRemembered$CardPower/Times.2
+SVar:AIPreferenceParams:CreatureEvalThreshold$ 200
+SVar:HasAttackEffect:TRUE
+DeckHas:Ability$Sacrifice
+DeckHints:Type$Giant
+Oracle:Whenever Surtland Flinger attacks, you may sacrifice another creature. When you do, Surtland Flinger deals damage equal to the sacrificed creature’s power to any target. If the sacrificed creature was a Giant, Surtland Flinger deals twice that much damage instead.