Edgar, Master Machinist Wizards clearly went out of their way to make Edgar, Master Machinist fair, between the once-per-turn clause and the fact that the artifact it casts enters tapped, but I refuse to believe that we cant crack this like an egg we should probably start with Krark-Clan Ironworks
With one of those out, Magica is all of a sudden questing for seven lore each turn which is already a pretty intense addition
Hell, these days it can be hard out there for any spells
Khans of Tarkir Draft Booster Boxes What happens when you blend fun multicolor factions, powerful new cards relevant to multiple formats, and a reprint of allied color fetchlands together
Right now Im playing a playset even in Hammer Time, but I recollect playing this card in a lot of different archetypes, from UB control to Ad Nauseam, from Goblins to even Sultai Urza
It allows us to create new themes for deck building while being backwards compatible