diff --git a/Mage.Sets/src/mage/cards/l/LairOfTheHydra.java b/Mage.Sets/src/mage/cards/l/LairOfTheHydra.java
new file mode 100644
index 00000000000..b79cd766930
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/l/LairOfTheHydra.java
@@ -0,0 +1,96 @@
+package mage.cards.l;
+
+import java.util.UUID;
+
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldAbility;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.condition.common.PermanentsOnTheBattlefieldCondition;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.costs.mana.VariableManaCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.TapSourceEffect;
+import mage.abilities.effects.common.continuous.BecomesCreatureSourceEffect;
+import mage.abilities.mana.GreenManaAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.common.FilterLandPermanent;
+import mage.filter.predicate.mageobject.AnotherPredicate;
+import mage.game.Game;
+import mage.game.permanent.token.custom.CreatureToken;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class LairOfTheHydra extends CardImpl {
+
+    private static final FilterLandPermanent filter = new FilterLandPermanent();
+
+    static {
+        filter.add(AnotherPredicate.instance);
+    }
+
+    private static final Condition condition = new PermanentsOnTheBattlefieldCondition(filter, ComparisonType.MORE_THAN, 1, true);
+
+    public LairOfTheHydra(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.LAND}, "");
+
+        // If you control two or more other lands, Lair of the Hydra enters the battlefield tapped.
+        this.addAbility(new EntersBattlefieldAbility(
+                new TapSourceEffect(), condition, "If you control two or more other lands, {this} enters the battlefield tapped.", null
+        ));
+
+        // {T}: Add {G}.
+        this.addAbility(new GreenManaAbility());
+
+        // {X}{G}: Until end of turn, Lair of the Hydra becomes an X/X green Hydra creature. It's still a land. X can't be 0.
+        ManaCostsImpl manaCosts = new ManaCostsImpl("{X}{G}");
+        for (Object cost : manaCosts) {
+            if (cost instanceof VariableManaCost) {
+                ((VariableManaCost) cost).setMinX(1);
+            }
+        }
+        this.addAbility(new SimpleActivatedAbility(Zone.BATTLEFIELD, new LairOfTheHydraEffect(), manaCosts));
+    }
+
+    private LairOfTheHydra(final LairOfTheHydra card) {
+        super(card);
+    }
+
+    @Override
+    public LairOfTheHydra copy() {
+        return new LairOfTheHydra(this);
+    }
+}
+
+class LairOfTheHydraEffect extends OneShotEffect {
+
+    public LairOfTheHydraEffect() {
+        super(Outcome.BecomeCreature);
+        this.staticText = "Until end of turn, {this} becomes an X/X green Hydra creature. It's still a land. X can't be 0";
+    }
+
+    private LairOfTheHydraEffect(final LairOfTheHydraEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public LairOfTheHydraEffect copy() {
+        return new LairOfTheHydraEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        int xValue = source.getManaCostsToPay().getX();
+        game.addEffect(new BecomesCreatureSourceEffect(
+                new CreatureToken(xValue, xValue, "X/X green Hydra creature")
+                    .withColor("G")
+                    .withSubType(SubType.HYDRA),
+                "land", Duration.EndOfTurn), source
+        );
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java b/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
index f90d9a6b972..2840ef5c171 100644
--- a/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
+++ b/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
@@ -141,6 +141,7 @@ public final class AdventuresInTheForgottenRealms extends ExpansionSet {
         cards.add(new SetCardInfo("Keen-Eared Sentry", 22, Rarity.UNCOMMON, mage.cards.k.KeenEaredSentry.class));
         cards.add(new SetCardInfo("Kick in the Door", 153, Rarity.COMMON, mage.cards.k.KickInTheDoor.class));
         cards.add(new SetCardInfo("Krydle of Baldur's Gate", 226, Rarity.UNCOMMON, mage.cards.k.KrydleOfBaldursGate.class));
+        cards.add(new SetCardInfo("Lair of the Hydra", 259, Rarity.RARE, mage.cards.l.LairOfTheHydra.class));
         cards.add(new SetCardInfo("Leather Armor", 248, Rarity.COMMON, mage.cards.l.LeatherArmor.class));
         cards.add(new SetCardInfo("Lightfoot Rogue", 111, Rarity.UNCOMMON, mage.cards.l.LightfootRogue.class));
         cards.add(new SetCardInfo("Loathsome Troll", 192, Rarity.UNCOMMON, mage.cards.l.LoathsomeTroll.class));