Osiris, Scholar of the Cosmos

Menace, Lifelink
Whenever a historic creature you control deals combat damage to a player, create a 1/1 black Guardian creature token with menace. (Artifacts, legendaries, and Sagas are historic.)

I've seen through time. To say I understand its intricate machinations would be folly. It's too complex and incomprehensible to be taken as a whole. Its eternal vastness has nearly unhinged my mind.