- Integrating a reformatted fix by Seravy which makes Mox Amber AI playable (as well as Reflecting Pool) and fixes auto mana payment for these and other cards that use ManaReflected.

forge-game/src/main/java/forge/game/ability/effects/ManaReflectedEffect.java

@@ -58,7 +58,8 @@ public class ManaReflectedEffect extends SpellAbilityEffect {
 
         String baseMana;
 
-        // Obey already made choice by AI
+        // TODO: This effect explicitly obeys express color choice as set by auto payment and AI routines in order
+        // to avoid misplays. Perhaps a better solution is possible?
         String colorsNeeded = sa.getManaPart().getExpressChoice();
         String choice = "";
 
@@ -69,14 +70,12 @@ public class ManaReflectedEffect extends SpellAbilityEffect {
             mask |= MagicColor.fromName(colorsNeeded.charAt(nChar));
         }
 
-        // AI wanted a "color" but result came up with no colors -> AI wanted Colorless!
-        // Is that a thing? I assume it is?
         if ((mask == 0) && (!("".equals(sa.getManaPart().getExpressChoice()))) && (colors.contains("colorless"))) {
             baseMana = MagicColor.toShortString(player.getController().chooseColorAllowColorless("Select Mana to Produce", sa.getHostCard(), ColorSet.fromMask(mask)));
-        } else
+        } else {
             // Nothing set previously so ask player if needed
             if (mask == 0) {
-                if (colors.size() == 0) {
+                if (colors.isEmpty()) {
                     return "0";
                 } else if (colors.size() == 1) {
                     baseMana = MagicColor.toShortString(colors.iterator().next());
@@ -90,11 +89,12 @@ public class ManaReflectedEffect extends SpellAbilityEffect {
             } else {
                 colorMenu = ColorSet.fromMask(mask);
                 byte val = sa.getActivatingPlayer().getController().chooseColor("Select Mana to Produce", sa, colorMenu);
-                if (0 == val) {
+                if (val == 0) {
                     throw new RuntimeException("ManaEffect::resolve() /*reflected mana*/ - " + sa.getActivatingPlayer() + " color mana choice is empty for " + sa.getHostCard().getName());
                 }
                 baseMana = MagicColor.toShortString(val);
             }
+        }
 
         final StringBuilder sb = new StringBuilder();
         if (amount == 0) {

forge-gui/res/cardsfolder/m/mox_amber.txt

@@ -2,6 +2,5 @@ Name:Mox Amber
 ManaCost:0
 Types:Legendary Artifact
 A:AB$ ManaReflected | Cost$ T | ColorOrType$ Color | Valid$ Creature.Legendary+YouCtrl,Planeswalker.Legendary+YouCtrl | ReflectProperty$ Is | SpellDescription$ Add one mana of any color among legendary creatures and planeswalkers you control.
-SVar:RemAIDeck:True
 SVar:Picture:http://www.wizards.com/global/images/magic/general/mox_amber.jpg
 Oracle:{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

forge-gui/res/cardsfolder/r/reflecting_pool.txt

@@ -1,6 +1,6 @@
 Name:Reflecting Pool
 ManaCost:no cost
 Types:Land
-A:AB$ ManaReflected | Cost$ T | ColorOrType$ Type | Valid$ Land.YouCtrl | ReflectProperty$ Produce | SpellDescription$ Add to your mana pool one mana of any type that a land you control could produce.
+A:AB$ ManaReflected | Cost$ T | ColorOrType$ Type | Valid$ Land.YouCtrl | ReflectProperty$ Produce | SpellDescription$ Add one mana of any type that a land you control could produce.
 SVar:Picture:http://www.wizards.com/global/images/magic/general/reflecting_pool.jpg
-Oracle:{T}: Add to your mana pool one mana of any type that a land you control could produce.
+Oracle:{T}: Add one mana of any type that a land you control could produce.