[WOE] Implement Imodane, the Pyrohammer (#10922)

* [WOE] Implement Imodane, the Pyrohammer

* unit test Imodane

* apply review

---------

Co-authored-by: xenohedron <xenohedron@users.noreply.github.com>

Mage/src/main/java/mage/abilities/hint/ValuePositiveHint.java

@@ -0,0 +1,35 @@
+package mage.abilities.hint;
+
+import mage.abilities.Ability;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.game.Game;
+
+/**
+ * @author Susucr
+ */
+public class ValuePositiveHint implements Hint {
+
+    private final String name;
+    private final DynamicValue value;
+
+    public ValuePositiveHint(String name, DynamicValue value) {
+        this.name = name;
+        this.value = value;
+    }
+
+    private ValuePositiveHint(final ValuePositiveHint hint) {
+        this.name = hint.name;
+        this.value = hint.value.copy();
+    }
+
+    @Override
+    public String getText(Game game, Ability ability) {
+        int amount = value.calculate(game, ability, null);
+        return amount <= 0 ? "" : name + ": " + amount;
+    }
+
+    @Override
+    public ValuePositiveHint copy() {
+        return new ValuePositiveHint(this);
+    }
+}

Mage/src/main/java/mage/filter/predicate/other/HasOnlySingleTargetPermanentPredicate.java

@@ -0,0 +1,56 @@
+package mage.filter.predicate.other;
+
+import mage.filter.FilterPermanent;
+import mage.filter.predicate.ObjectSourcePlayer;
+import mage.filter.predicate.ObjectSourcePlayerPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.target.Target;
+import mage.util.TargetAddress;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801, Susucr
+ */
+public class HasOnlySingleTargetPermanentPredicate implements ObjectSourcePlayerPredicate<Spell> {
+
+    private final FilterPermanent filter;
+
+    public HasOnlySingleTargetPermanentPredicate(FilterPermanent filter) {
+        this.filter = filter.copy();
+    }
+
+    @Override
+    public boolean apply(ObjectSourcePlayer<Spell> input, Game game) {
+        Spell spell = input.getObject();
+        if (spell == null) {
+            return false;
+        }
+        UUID singleTarget = null;
+        for (TargetAddress addr : TargetAddress.walk(spell)) {
+            Target targetInstance = addr.getTarget(spell);
+            for (UUID targetId : targetInstance.getTargets()) {
+                if (singleTarget == null) {
+                    singleTarget = targetId;
+                } else if (!singleTarget.equals(targetId)) {
+                    // Ruling on Ivy, Gleeful Spellthief
+                    // (2022-09-09) The second ability triggers whenever a player casts a spell that targets
+                    // only one creature and no other object or player.
+                    return false;
+                }
+            }
+        }
+        if (singleTarget == null) {
+            return false;
+        }
+        Permanent permanent = game.getPermanent(singleTarget);
+        return filter.match(permanent, input.getPlayerId(), input.getSource(), game);
+    }
+
+    @Override
+    public String toString() {
+        return "that targets only a single " + filter.getMessage();
+    }
+}