Slaughter Pact [Future Sight] SPA Catapulta de metralla you may add an amount

you may add an amount of {C} equal to the number of creatures you control that share a creature type with it

Set: Commander 2018 Type: Artifact Creature — Construct Uncommon Cost: {3} Other artifact creatures you control get +1/+1

Set: Ninth Edition Type: Sorcery Rarity: Uncommon Cost: {2}{U} Target opponent reveals their hand

Anya has indestructible

you add {B}{B}

Slaughter Pact [Future Sight] SPA Catapulta de metralla you may add an amountSet: Future Sight Type: Instant Rare Cost: {0} Destroy target nonblack creature. At the beginning of your next upkeep, pay {2}{B}. If you don't, you lose the game. Death is only the beginning of the end.