The ability we care about is the second one: Whenever a creature you control dies, you may pay 3 life
Its a deterrent for your opponents to chump-block and it gives you an additional benefit even if your creature dies in combat
Hed left skyrunes warning of the eviction, even though it was cloudy
It is an artifact creature (maintaining Dooms indestructibility condition), draws a card (fueling the connive engine), blocks anything flying (defensive utility), and costs two mana
When it attacks, you can give something a cell counterand suddenly, all your modified creatures turn into 7/5 beaters for the turn, making it a great finisher that ends games when unchecked
Best Mill Payoffs Youve made it this far, which means that youre probably aware of the strongest mill payoff: Bruvac the Grandiloquent