[CLB] Implemented Font of Magic

Mage.Sets/src/mage/cards/f/FontOfMagic.java

@@ -0,0 +1,77 @@
+package mage.cards.f;
+
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.dynamicvalue.common.CommanderCastCountValue;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.hint.Hint;
+import mage.abilities.hint.ValueHint;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.CostModificationType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.game.Game;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class FontOfMagic extends CardImpl {
+
+    private static final Hint hint = new ValueHint(
+            "Commanders cast from command zone", CommanderCastCountValue.instance
+    );
+
+    public FontOfMagic(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{3}{U}");
+
+        // Instant and sorcery spells you cast cost {1} less to cast for each time you've cast a commander from the command zone this game.
+        this.addAbility(new SimpleStaticAbility(new FontOfMagicEffect()).addHint(hint));
+    }
+
+    private FontOfMagic(final FontOfMagic card) {
+        super(card);
+    }
+
+    @Override
+    public FontOfMagic copy() {
+        return new FontOfMagic(this);
+    }
+}
+
+class FontOfMagicEffect extends CostModificationEffectImpl {
+
+    FontOfMagicEffect() {
+        super(Duration.WhileOnStack, Outcome.Benefit, CostModificationType.REDUCE_COST);
+        staticText = "instant and sorcery spells you cast cost {1} less to cast " +
+                "for each time you've cast a commander from the command zone this game";
+    }
+
+    private FontOfMagicEffect(final FontOfMagicEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        CardUtil.reduceCost(abilityToModify, Math.max(0, CommanderCastCountValue.instance.calculate(game, source, this)));
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        return abilityToModify instanceof SpellAbility
+                && abilityToModify.isControlledBy(source.getControllerId())
+                && ((SpellAbility) abilityToModify).getCharacteristics(game).isInstantOrSorcery(game)
+                && game.getCard(abilityToModify.getSourceId()) != null;
+    }
+
+    @Override
+    public FontOfMagicEffect copy() {
+        return new FontOfMagicEffect(this);
+    }
+}

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

@@ -88,6 +88,7 @@ public final class CommanderLegendsBattleForBaldursGate extends ExpansionSet {
         cards.add(new SetCardInfo("Fire Diamond", 313, Rarity.COMMON, mage.cards.f.FireDiamond.class));
         cards.add(new SetCardInfo("Fireball", 175, Rarity.UNCOMMON, mage.cards.f.Fireball.class));
         cards.add(new SetCardInfo("Flaming Fist", 18, Rarity.COMMON, mage.cards.f.FlamingFist.class));
+        cards.add(new SetCardInfo("Font of Magic", 71, Rarity.MYTHIC, mage.cards.f.FontOfMagic.class));
         cards.add(new SetCardInfo("Forest", 467, Rarity.LAND, mage.cards.basiclands.Forest.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Ganax, Astral Hunter", 176, Rarity.UNCOMMON, mage.cards.g.GanaxAstralHunter.class));
         cards.add(new SetCardInfo("Gate Colossus", 315, Rarity.UNCOMMON, mage.cards.g.GateColossus.class));