(Equipment, Auras you control, and counters are modifications.) If the creature you control is an illegal target as Signature Slam tries to resolve but the creature you don't control is still a legal target, each modified creature you control (which may include the target creature you control if it's still on the battlefield) will still deal damage equal to its power to the creature you don't control
Luckily, Gilgamesh himself is a Samurai Creature, meaning he can the battlefield and automatically get an Equipment
Whenever a Zombie an opponent controls dies, draw a card
Youll also pile on zombies, so this card can see play in zombie EDH decks, with the usual Fleshbag Marauder variants
Ixalan brought a few flavorful tribes to the forefront, and despite being an unabashed Dinosaur kid, I'm over the moon that Pirates finally get their due
So knowing we wont get another set quite like Rise, The Brothers War seems like a good way to capture that feel