diff --git a/Mage.Sets/src/mage/cards/n/NyleasIntervention.java b/Mage.Sets/src/mage/cards/n/NyleasIntervention.java
new file mode 100644
index 0000000000..1fbe570745
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/n/NyleasIntervention.java
@@ -0,0 +1,84 @@
+package mage.cards.n;
+
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.dynamicvalue.MultipliedValue;
+import mage.abilities.dynamicvalue.common.ManacostVariableValue;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DamageAllEffect;
+import mage.abilities.effects.common.search.SearchLibraryPutInHandEffect;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.AbilityPredicate;
+import mage.game.Game;
+import mage.target.common.TargetCardInLibrary;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class NyleasIntervention extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent();
+
+    static {
+        filter.add(new AbilityPredicate(FlyingAbility.class));
+    }
+
+    private static final DynamicValue xValue = new MultipliedValue(ManacostVariableValue.instance, 2);
+
+    public NyleasIntervention(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{X}{G}{G}");
+
+        // Choose one —
+        // • Search your library for up to X land cards, reveal them, put them into your hand, then shuffle your library.
+        this.getSpellAbility().addEffect(new NyleasInterventionEffect());
+
+        // • Nylea's Intervention deals twice X damage to each creature with flying.
+        this.getSpellAbility().addMode(new Mode(new DamageAllEffect(xValue, filter)
+                .setText("{this} deals twice X damage to each creature with flying")));
+    }
+
+    private NyleasIntervention(final NyleasIntervention card) {
+        super(card);
+    }
+
+    @Override
+    public NyleasIntervention copy() {
+        return new NyleasIntervention(this);
+    }
+}
+
+class NyleasInterventionEffect extends OneShotEffect {
+
+    NyleasInterventionEffect() {
+        super(Outcome.Benefit);
+        staticText = "search your library for up to X land cards, " +
+                "reveal them, put them into your hand, then shuffle your library";
+    }
+
+    private NyleasInterventionEffect(final NyleasInterventionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public NyleasInterventionEffect copy() {
+        return new NyleasInterventionEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        int xValue = source.getManaCostsToPay().getX();
+        return new SearchLibraryPutInHandEffect(new TargetCardInLibrary(
+                0, xValue, StaticFilters.FILTER_CARD_LAND
+        ), true, true).apply(game, source);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/TherosBeyondDeath.java b/Mage.Sets/src/mage/sets/TherosBeyondDeath.java
index ca8cf2dd72..552d524fbc 100644
--- a/Mage.Sets/src/mage/sets/TherosBeyondDeath.java
+++ b/Mage.Sets/src/mage/sets/TherosBeyondDeath.java
@@ -71,6 +71,7 @@ public final class TherosBeyondDeath extends ExpansionSet {
         cards.add(new SetCardInfo("Mire's Grasp", 106, Rarity.COMMON, mage.cards.m.MiresGrasp.class));
         cards.add(new SetCardInfo("Mountain", 253, Rarity.LAND, mage.cards.basiclands.Mountain.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("Nadir Kraken", 55, Rarity.RARE, mage.cards.n.NadirKraken.class));
+        cards.add(new SetCardInfo("Nylea's Intervention", 188, Rarity.RARE, mage.cards.n.NyleasIntervention.class));
         cards.add(new SetCardInfo("Nylea, Keen-Eyed", 185, Rarity.MYTHIC, mage.cards.n.NyleaKeenEyed.class));
         cards.add(new SetCardInfo("Nyx Lotus", 235, Rarity.RARE, mage.cards.n.NyxLotus.class));
         cards.add(new SetCardInfo("Nyxborn Colossus", 191, Rarity.COMMON, mage.cards.n.NyxbornColossus.class));