diff --git a/Mage.Sets/src/mage/cards/l/Library.java b/Mage.Sets/src/mage/cards/l/Library.java
new file mode 100644
index 00000000000..5c8d80023c3
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/l/Library.java
@@ -0,0 +1,46 @@
+package mage.cards.l;
+
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTappedAbility;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.costs.mana.GenericManaCost;
+import mage.abilities.effects.keyword.InvestigateEffect;
+import mage.abilities.mana.BlueManaAbility;
+import mage.abilities.mana.RedManaAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class Library extends CardImpl {
+
+    public Library(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.LAND}, "");
+
+        // Library enters the battlefield tapped.
+        this.addAbility(new EntersBattlefieldTappedAbility());
+
+        // {T}: Add {U} or {R}.
+        this.addAbility(new BlueManaAbility());
+        this.addAbility(new RedManaAbility());
+
+        // {4}, {T}: Investigate.
+        Ability ability = new SimpleActivatedAbility(new InvestigateEffect(), new GenericManaCost(4));
+        ability.addCost(new TapSourceCost());
+        this.addAbility(ability);
+    }
+
+    private Library(final Library card) {
+        super(card);
+    }
+
+    @Override
+    public Library copy() {
+        return new Library(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/RavnicaClueEdition.java b/Mage.Sets/src/mage/sets/RavnicaClueEdition.java
index 1406725a32b..fe1f3737ba1 100644
--- a/Mage.Sets/src/mage/sets/RavnicaClueEdition.java
+++ b/Mage.Sets/src/mage/sets/RavnicaClueEdition.java
@@ -25,6 +25,7 @@ public final class RavnicaClueEdition extends ExpansionSet {
         cards.add(new SetCardInfo("Hallowed Fountain", 277, Rarity.RARE, mage.cards.h.HallowedFountain.class));
         cards.add(new SetCardInfo("Knife", 10, Rarity.UNCOMMON, mage.cards.k.Knife.class));
         cards.add(new SetCardInfo("Lead Pipe", 9, Rarity.UNCOMMON, mage.cards.l.LeadPipe.class));
+        cards.add(new SetCardInfo("Library", 18, Rarity.UNCOMMON, mage.cards.l.Library.class));
         cards.add(new SetCardInfo("Senator Peacock", 2, Rarity.RARE, mage.cards.s.SenatorPeacock.class));
         cards.add(new SetCardInfo("Steam Vents", 280, Rarity.RARE, mage.cards.s.SteamVents.class));
     }