Blood Operative [Guilds of Ravnica] Anthologies you may put X +1/+1

you may put X +1/+1 counters on Hamletback Goliath

Set: Kaladesh Type: Artifact Rarity: Common Cost: {2} When Cogworker's Puzzleknot enters the battlefield

rounded up: Destroy target nonblack creature

Set: Dominaria Prerelease Promos Type: Legendary Planeswalker — Jaya Rarity: Mythic Cost: {2}{R}{R}{R} +1: Add {R}{R}{R}

Perhaps history will remember me in some small part for my work

Blood Operative [Guilds of Ravnica] Anthologies you may put X +1/+1Set: Guilds of Ravnica Type: Creature Vampire Assassin Rarity: Rare Cost: {1}{B}{B} Lifelink When Blood Operative enters the battlefield, you may exile target card from a graveyard. Whenever you surveil, if Blood Operative is in your graveyard, you may pay 3 life. If you do, return Blood Operative to your hand.