Walking Ballista [Jumpstart 2022] Human Barbarian Soldier whenever either of those creatures

whenever either of those creatures deals combat damage

create a 1/1 red Goblin creature token that's tapped and attacking

Set: Modern Horizons 2 Type: Legendary Creature — Monkey Pirate Rarity: Mythic Cost: {R} Whenever Ragavan

Set: Antiquities Type: Enchantment Rarity: Uncommon Cost: {3}{B} Whenever an artifact becomes tapped or a player activates an artifact's ability without {T} in its activation cost

Set: Magic Origins Type: Enchantment Rarity: Mythic Cost: {4}{W} At the beginning of your upkeep

Walking Ballista [Jumpstart 2022] Human Barbarian Soldier whenever either of those creaturesSet: Jumpstart 2022 Type: Artifact Creature Construct Rarity: Rare Cost: {X}{X} Walking Ballista enters the battlefield with X +1 +1 counters on it. {4}: Put a +1 +1 counter on Walking Ballista. Remove a +1 +1 counter from Walking Ballista: It deals 1 damage to any target.