Merge pull request #2293 from royk/welding-sparks

looks good to me!

Mage.Sets/src/mage/sets/kaladesh/MakeObsolete.java

@@ -0,0 +1,32 @@
+package mage.sets.kaladesh;
+
+import mage.abilities.effects.common.continuous.BoostOpponentsEffect;
+import mage.cards.CardImpl;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Rarity;
+
+import java.util.UUID;
+
+/**
+ * @author royk
+ */
+public class MakeObsolete extends CardImpl {
+
+    public MakeObsolete(UUID ownerId) {
+        super(ownerId, 89, "Make Obsolete", Rarity.UNCOMMON, new CardType[]{CardType.INSTANT}, "(2)(B)");
+        this.expansionSetCode = "KLD";
+
+        // Creatures your opponents control get -1/-1  until end of turn
+        this.getSpellAbility().addEffect(new BoostOpponentsEffect(-1, -1, Duration.EndOfTurn));
+    }
+
+     public MakeObsolete(final MakeObsolete card) {
+        super(card);
+    }
+
+    @Override
+    public MakeObsolete copy() {
+        return new MakeObsolete(this);
+    }
+}