Walking Ballista [Secret Lair Drop Series] Return to Ravnica but you may put it

but you may put it on top of your library instead of into your graveyard

Wei Field Marshal's power is equal to the number of Swamps you control

I didn't think Mammoths could ever hold a candle to a well-trained battle horse

you may search your library for a colorless creature card with converted mana cost 7 or greater

Walking Ballista [Secret Lair Drop Series] Return to Ravnica but you may put itSet: Secret Lair Drop Series 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.