While the Worldsire doesn't have trample or any other form of evasion, it should be large enough that you can kill anything that crosses its path, and the land ability should be what you're using this for, with things like Valakut, the Molten Pinnacle or Field of the Dead
I will admit that it looks like Food mostly has an actual cost, as opposed to Bloodghast being free
Capable of Seeking an Artifact every single turn, and turning it into a Gnome, Cogwork Progenitor feels inherently breakable
As Joshua enters we get to discard up to two cards and draw that many cards
Dance of the Manse While its no Replenish, its certainly a new affordable option for Blue/White enchantment based decks
It also works well in milling decks as a way to mill while doing something useful