That said, there is an easy way to get the 20-charge-counter win with Darksteel Reactor in Historic, but I don't think you're going to like it: you simply play Darksteel Reactor as the win condition in your Nexus of Fate / Wilderness Reclamation deck
This here is Sygg, Cutthroat by the Rivers
Shadowheart, Cleric of Twilight can't be blocked by creatures with power 2 or less
Eventually, you reach a critical mass of shrines that give you a massive resource advantage to win, be it making everyone discard lots of cards with Honden of Night's Reach or milling opponents with Go-Shintai of Lost Wisdom
Lake Silencio Plane Earth Still Point in Time All spells have split second
Modern has sold out every week it's been back while MH2 draft sold out, and AFR draft doesn't quite