This isn't a creature that can technically dish out this ridiculously high damage number if you pull off a multi-card combo or jump through some hoops
On top of that, Aurora, Dreaming Guardians three strength and five willpower pair with its two lore to make it a solid card by itself, able to likely withstand a few attacks in the early game - especially given that having Shift 3, allowing you to bring it out on top of another Aurora card for a lower ink cost, means you can have it on the field very early on
But as Commander starts at 40 life, you already have it with full effects
's RiseInstant - AdventureCreate a 2/2 black Zombie creature token
At the beginning of your end step, if there are six or more permanent cards in your graveyard, transform Exdeath
First strike needs to be given to a creature before the damage steps begin so that it may assign its damage during the first damage step