Hullbreacher is very strong against a deck fueled by Ponder, Brainstorm, and Up the Beanstalk card draw, converting their extra draws into Treasure for us and disrupting their card advantage engine. An additional The One Ring gives us more inevitability and protection in a long grindy control matchup where card advantage wins. Sink into Stupor and single-target Cyclonic Rift are weak since their Force of Will, Force of Negation, and Spell Pierce can protect their permanents from bounce anyway, and we'd rather develop our own board. Keep Karn, the Great Creator and our full artifact suite since Leyline Binding is their main removal, and its cost is reduced by the basic land types they control rather than our permanent types.