diff --git a/forge-game/src/main/java/forge/game/GameAction.java b/forge-game/src/main/java/forge/game/GameAction.java
index 16ec6662f0d..5d67cdbd938 100644
--- a/forge-game/src/main/java/forge/game/GameAction.java
+++ b/forge-game/src/main/java/forge/game/GameAction.java
@@ -984,7 +984,7 @@ public class GameAction {
             for (final Card c : game.getCardsIn(ZoneType.Battlefield)) {
                 if (c.isCreature()) {
                     // Rule 704.5f - Put into grave (no regeneration) for toughness <= 0
-                    if (c.getNetToughness() <= 0) {
+                    if (c.getLethal() <= 0) {
                         if (noRegCreats == null) {
                             noRegCreats = new CardCollection();
                         }
@@ -992,7 +992,7 @@ public class GameAction {
                         checkAgain = true;
                     } else if (c.hasKeyword("CARDNAME can't be destroyed by lethal damage unless lethal damage dealt by a single source is marked on it.")) {
                         for (final Integer dmg : c.getReceivedDamageFromThisTurn().values()) {
-                            if (c.getNetToughness() <= dmg.intValue()) {
+                            if (c.getLethal() <= dmg.intValue()) {
                                 if (desCreats == null) {
                                     desCreats = new CardCollection();
                                 }
@@ -1004,7 +1004,7 @@ public class GameAction {
                     }
                     // Rule 704.5g - Destroy due to lethal damage
                     // Rule 704.5h - Destroy due to deathtouch
-                    else if (c.getNetToughness() <= c.getDamage() || c.hasBeenDealtDeathtouchDamage()) {
+                    else if (c.getLethal() <= c.getDamage() || c.hasBeenDealtDeathtouchDamage()) {
                         if (desCreats == null) {
                             desCreats = new CardCollection();
                         }
diff --git a/forge-game/src/main/java/forge/game/card/Card.java b/forge-game/src/main/java/forge/game/card/Card.java
index f2ab81b38b9..d89ebcdaaf7 100644
--- a/forge-game/src/main/java/forge/game/card/Card.java
+++ b/forge-game/src/main/java/forge/game/card/Card.java
@@ -4731,9 +4731,21 @@ public class Card extends GameEntity implements Comparable<Card> {
         return false;
     }
 
+    // this is the amount of damage a creature needs to receive before it dies
+    public final int getLethal() {
+        if (getAmountOfKeyword("Lethal damage dealt to CARDNAME is determined by its power rather than its toughness.") % 2 !=0) {
+            return getNetPower(); }
+        else {
+            return getNetToughness(); }
+    }
+
     // this is the minimal damage a trampling creature has to assign to a blocker
     public final int getLethalDamage() {
-        return getNetToughness() - getDamage() - getTotalAssignedDamage();
+        if (getAmountOfKeyword("Lethal damage dealt to CARDNAME is determined by its power rather than its toughness.") % 2 !=0) {
+            return getNetPower() - getDamage() - getTotalAssignedDamage();
+        }
+        else {
+            return getNetToughness() - getDamage() - getTotalAssignedDamage();}
     }
 
     public final int getDamage() {
diff --git a/forge-gui/res/cardsfolder/upcoming/zilortha_strength_incarnate.txt b/forge-gui/res/cardsfolder/upcoming/zilortha_strength_incarnate.txt
new file mode 100644
index 00000000000..37a13f585de
--- /dev/null
+++ b/forge-gui/res/cardsfolder/upcoming/zilortha_strength_incarnate.txt
@@ -0,0 +1,7 @@
+Name:Zilortha, Strength Incarnate
+ManaCost:3 R G
+Types:Legendary Creature Dinosaur
+K:Trample
+PT:7/3
+S:Mode$ Continuous | Affected$ Creature.YouCtrl | AddHiddenKeyword$ Lethal damage dealt to CARDNAME is determined by its power rather than its toughness. | Description$ Lethal damage dealt to creatures you control is determined by their power rather than their toughness.
+Oracle:Trample\nLethal damage dealt to creatures you control is determined by their power rather than their toughness.