Implemented Bolt Hound

Mage.Sets/src/mage/cards/b/BoltHound.java

@@ -0,0 +1,45 @@
+package mage.cards.b;
+
+import mage.MageInt;
+import mage.abilities.common.AttacksTriggeredAbility;
+import mage.abilities.effects.common.continuous.BoostControlledEffect;
+import mage.abilities.keyword.HasteAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class BoltHound extends CardImpl {
+
+    public BoltHound(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{R}");
+
+        this.subtype.add(SubType.ELEMENTAL);
+        this.subtype.add(SubType.DOG);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(2);
+
+        // Haste
+        this.addAbility(HasteAbility.getInstance());
+
+        // Whenever Bolt Hound attacks, other creatures you control get +1/+0 until end of turn.
+        this.addAbility(new AttacksTriggeredAbility(new BoostControlledEffect(
+                1, 0, Duration.EndOfTurn, true
+        ), false));
+    }
+
+    private BoltHound(final BoltHound card) {
+        super(card);
+    }
+
+    @Override
+    public BoltHound copy() {
+        return new BoltHound(this);
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2021.java

@@ -39,6 +39,7 @@ public final class CoreSet2021 extends ExpansionSet {
         cards.add(new SetCardInfo("Baneslayer Angel", 6, Rarity.MYTHIC, mage.cards.b.BaneslayerAngel.class));
         cards.add(new SetCardInfo("Basri's Aegis", 322, Rarity.RARE, mage.cards.b.BasrisAegis.class));
         cards.add(new SetCardInfo("Basri, Devoted Paladin", 320, Rarity.MYTHIC, mage.cards.b.BasriDevotedPaladin.class));
+        cards.add(new SetCardInfo("Bolt Hound", 131, Rarity.UNCOMMON, mage.cards.b.BoltHound.class));
         cards.add(new SetCardInfo("Carrion Grub", 92, Rarity.UNCOMMON, mage.cards.c.CarrionGrub.class));
         cards.add(new SetCardInfo("Chandra's Firemaw", 333, Rarity.RARE, mage.cards.c.ChandrasFiremaw.class));
         cards.add(new SetCardInfo("Chandra, Flame's Catalyst", 332, Rarity.MYTHIC, mage.cards.c.ChandraFlamesCatalyst.class));

Utils/mtg-cards-data.txt

@@ -37460,6 +37460,7 @@ Liliana, Waker of the Dead|Core Set 2021|108|M|{2}{B}{B}|Legendary Planeswalker
 Necromentia|Core Set 2021|116|R|{1}{B}{B}|Sorcery|||Choose a card name other than a basic land card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles their library, then creates a 2/2 black Zombie creature token for each card exiled from their hand this way.|
 Peer into the Abyss|Core Set 2021|117|R|{4}{B}{B}{B}|Sorcery|||Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.|
 Vito, Thorn of the Dusk Rose|Core Set 2021|127|R|{2}{B}|Legendary Creature - Vampire Cleric|1|3|Whenever you gain life, target opponent loses that much life.${3}{B}{B}: Creatures you control gain lifelink until end of turn.|
+Bolt Hound|Core Set 2021|131|U|{2}{R}|Creature - Elemental Dog|2|2|Haste$Whenever Bolt Hound attacks, other creatures you control get +1/+0 until end of turn.|
 Double Vision|Core Set 2021|142|R|{3}{R}{R}|Enchantment|||Whenever you cast your first instant or sorcery spell each turn, copy that spell. You may choose new targets for the copy.|
 Gadrak, the Crown-Scourge|Core Set 2021|146|R|{2}{R}|Legendary Creature - Dragon|5|4|Flying$Gadrak, the Crown-Scourge can't attack unless you control four or more artifacts.$At the beginning of your end step, create a Treasure token for each nontoken creature that died this turn.|
 Azusa, Lost but Seeking|Core Set 2021|173|R|{2}{G}|Legendary Creature - Human Monk|1|2|You may play two additional lands on each of your turns.|