[MAT] Implement Open the Way

Mage.Sets/src/mage/cards/o/OpenTheWay.java

@@ -0,0 +1,102 @@
+package mage.cards.o;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.CostAdjuster;
+import mage.abilities.costs.mana.VariableManaCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.InfoEffect;
+import mage.cards.*;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.players.Player;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class OpenTheWay extends CardImpl {
+
+    public OpenTheWay(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{X}{G}{G}");
+
+        // X can't be greater than the number of players in the game.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.ALL, new InfoEffect("X can't be greater than the number of players in the game")
+        ).setRuleAtTheTop(true));
+        this.getSpellAbility().setCostAdjuster(OpenTheWayAdjuster.instance);
+
+        // Reveal cards from the top of your library until you reveal X land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.
+        this.getSpellAbility().addEffect(new OpenTheWayEffect());
+    }
+
+    private OpenTheWay(final OpenTheWay card) {
+        super(card);
+    }
+
+    @Override
+    public OpenTheWay copy() {
+        return new OpenTheWay(this);
+    }
+}
+
+enum OpenTheWayAdjuster implements CostAdjuster {
+    instance;
+
+    @Override
+    public void adjustCosts(Ability ability, Game game) {
+        int playerCount = game.getPlayers().size();
+        CardUtil.castStream(ability.getCosts().stream(), VariableManaCost.class)
+                .forEach(cost -> cost.setMaxX(playerCount));
+    }
+}
+
+class OpenTheWayEffect extends OneShotEffect {
+
+    OpenTheWayEffect() {
+        super(Outcome.Benefit);
+        staticText = "reveal cards from the top of your library until you reveal X land cards. Put those " +
+                "land cards onto the battlefield tapped and the rest on the bottom of your library in a random order";
+    }
+
+    private OpenTheWayEffect(final OpenTheWayEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public OpenTheWayEffect copy() {
+        return new OpenTheWayEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        int xValue = source.getManaCostsToPay().getX();
+        if (player == null || xValue < 1) {
+            return false;
+        }
+        Cards toReveal = new CardsImpl();
+        Cards lands = new CardsImpl();
+        for (Card card : player.getLibrary().getCards(game)) {
+            toReveal.add(card);
+            if (card.isLand(game)) {
+                lands.add(card);
+            }
+            if (lands.size() >= xValue) {
+                break;
+            }
+        }
+        player.revealCards(source, toReveal, game);
+        player.moveCards(
+                lands.getCards(game), Zone.BATTLEFIELD, source, game,
+                true, false, false, null
+        );
+        toReveal.retainZone(Zone.LIBRARY, game);
+        player.putCardsOnBottomOfLibrary(toReveal, game, source, false);
+        return true;
+    }
+}

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

@@ -39,6 +39,7 @@ public final class MarchOfTheMachineTheAftermath extends ExpansionSet {
         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));
         cards.add(new SetCardInfo("Niv-Mizzet, Supreme", 40, Rarity.RARE, mage.cards.n.NivMizzetSupreme.class));
+        cards.add(new SetCardInfo("Open the Way", 23, Rarity.RARE, mage.cards.o.OpenTheWay.class));
         cards.add(new SetCardInfo("Rebuild the City", 43, Rarity.RARE, mage.cards.r.RebuildTheCity.class));
         cards.add(new SetCardInfo("Reckless Handling", 19, Rarity.UNCOMMON, mage.cards.r.RecklessHandling.class));
         cards.add(new SetCardInfo("Samut, Vizier of Naktamun", 45, Rarity.MYTHIC, mage.cards.s.SamutVizierOfNaktamun.class));