[MAT] Implement Leyline Immersion

Mage.Sets/src/mage/cards/l/LeylineImmersion.java

@@ -0,0 +1,85 @@
+package mage.cards.l;
+
+import mage.ConditionalMana;
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.mana.GenericManaCost;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
+import mage.abilities.keyword.EnchantAbility;
+import mage.abilities.keyword.WardAbility;
+import mage.abilities.mana.ConditionalAnyColorManaAbility;
+import mage.abilities.mana.builder.ConditionalManaBuilder;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.target.TargetPermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class LeylineImmersion extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent("legendary creature");
+
+    static {
+        filter.add(SuperType.LEGENDARY.getPredicate());
+    }
+
+    public LeylineImmersion(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{3}{G}");
+
+        this.subtype.add(SubType.AURA);
+
+        // Enchant legendary creature
+        TargetPermanent auraTarget = new TargetPermanent(filter);
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
+        this.addAbility(new EnchantAbility(auraTarget));
+
+        // Enchanted creature has ward {2} and "{T}: Add five mana in any combination of colors. Spend this mana only to cast spells."
+        Ability ability = new SimpleStaticAbility(new GainAbilityAttachedEffect(
+                new WardAbility(new GenericManaCost(2), false), AttachmentType.AURA
+        ));
+        ability.addEffect(new GainAbilityAttachedEffect(
+                new ConditionalAnyColorManaAbility(5, new LeylineImmersionManaBuilder()), AttachmentType.AURA
+        ).setText("and \"{T}: Add five mana in any combination of colors. Spend this mana only to cast spells.\""));
+        this.addAbility(ability);
+    }
+
+    private LeylineImmersion(final LeylineImmersion card) {
+        super(card);
+    }
+
+    @Override
+    public LeylineImmersion copy() {
+        return new LeylineImmersion(this);
+    }
+}
+
+class LeylineImmersionManaBuilder extends ConditionalManaBuilder {
+    @Override
+    public ConditionalMana build(Object... options) {
+        return new LeylineImmersionConditionalMana(this.mana);
+    }
+
+    @Override
+    public String getRule() {
+        return "Spend this mana only to cast a spell";
+    }
+}
+
+class LeylineImmersionConditionalMana extends ConditionalMana {
+
+    public LeylineImmersionConditionalMana(Mana mana) {
+        super(mana);
+        staticText = "Spend this mana only to cast a spell";
+        addCondition((game, source) -> source instanceof SpellAbility);
+    }
+}

Mage.Sets/src/mage/sets/MarchOfTheMachineTheAftermath.java

@@ -35,6 +35,7 @@ public final class MarchOfTheMachineTheAftermath extends ExpansionSet {
         cards.add(new SetCardInfo("Karn, Legacy Reforged", 49, Rarity.MYTHIC, mage.cards.k.KarnLegacyReforged.class));
         cards.add(new SetCardInfo("Kiora, Sovereign of the Deep", 35, Rarity.MYTHIC, mage.cards.k.KioraSovereignOfTheDeep.class));
         cards.add(new SetCardInfo("Kolaghan Warmonger", 17, Rarity.UNCOMMON, mage.cards.k.KolaghanWarmonger.class));
+        cards.add(new SetCardInfo("Leyline Immersion", 21, Rarity.RARE, mage.cards.l.LeylineImmersion.class));
         cards.add(new SetCardInfo("Markov Baron", 14, Rarity.UNCOMMON, mage.cards.m.MarkovBaron.class));
         cards.add(new SetCardInfo("Metropolis Reformer", 4, Rarity.RARE, mage.cards.m.MetropolisReformer.class));
         cards.add(new SetCardInfo("Nissa, Resurgent Animist", 22, Rarity.MYTHIC, mage.cards.n.NissaResurgentAnimist.class));