On the surface, this Legendary Artifact may seem kind of terrible, as opponents can repeatedly block your draw and make you mill
(If a creature with a finality counter on it would die, exile it instead.) Enchantment Welcome to
If something causes Urzas Saga to lose its chapter abilities without removing the saga subtype, it will be immediately sacrificed as a state-based action because it has no more chapters that need to resolve
In Commander that's off a 40-life total, so that's a pretty good rate
Seems like a fun reanimation target, and a great target for any populate or token doubling shenanigans youve got going on
When you're willing to just duke it out on the battlefield it can be incredibly frustrating to have to look over at the Blue player's open mana and wonder if there's any point at all in casting the huge beastie that's been sitting in your hand for turn after turn