New common class CopyTargetStackAbilityEffect (#10525)

- Fix superfluous null check in Lithoform Engine
- Remove hardcoding of controlled abilities in TargetTriggeredAbility (used only in Strionic Resonator)
- EnchantmentSourcePredicate analogous to ArtifactSourcePredicate

Mage/src/main/java/mage/abilities/effects/common/CopyTargetStackAbilityEffect.java

@@ -0,0 +1,52 @@
+package mage.abilities.effects.common;
+
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.effects.OneShotEffect;
+import mage.constants.Outcome;
+import mage.game.Game;
+import mage.game.stack.StackAbility;
+
+public class CopyTargetStackAbilityEffect extends OneShotEffect {
+
+    /**
+     * Copy target (activated/triggered) ability on the stack, choosing new targets for the copy
+     */
+    public CopyTargetStackAbilityEffect() {
+        super(Outcome.Copy);
+    }
+
+    public CopyTargetStackAbilityEffect(final CopyTargetStackAbilityEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        StackAbility stackAbility = (StackAbility) game.getStack().getStackObject(targetPointer.getFirst(game, source));
+        if (stackAbility == null) {
+            return false;
+        }
+        stackAbility.createCopyOnStack(game, source, source.getControllerId(), true);
+        return true;
+    }
+
+    @Override
+    public CopyTargetStackAbilityEffect copy() {
+        return new CopyTargetStackAbilityEffect(this);
+    }
+
+    @Override
+    public String getText(Mode mode) {
+        if (staticText != null && !staticText.isEmpty()) {
+            return staticText;
+        }
+        StringBuilder sb = new StringBuilder();
+        sb.append("copy ");
+        if (!mode.getTargets().isEmpty()) {
+            sb.append("target ").append(mode.getTargets().get(0).getTargetName());
+        }
+        sb.append(". You may choose new targets for the copy");
+        return sb.toString();
+    }
+
+}