This is just a nice tool to play a value game with token makers and creatures that generate value with other enters-the-battlefield abilities that is balanced in a way that makes it far more likely to run out of gas than Recurring Nightmare
As for Ral Zarek, himself, I kind of imagine him seeing moderate success as a random one- or two-of in some U/R/x control decks, but more interestingly, I imagine someone building a new kind of blue aggro or midrange deck that actually takes advantage of Ral Zareks ability to remove blockers or do six to the face
Urza, Lord High Artificer by Grzegorz Rutkowski To be fair, if any character had to end up on this list, he'd be the go-to guy Bear in mind, even with the Game-Changer List revealed, this is only a beta test for Wizard's Commander strategy
For example, Quantum RiddlerQuantum Riddler is a five-mana creature, but it can also be a two-mana one if you need to dig one card deeper or you meet the condition to refill your hand
Dissection Tools Duskmourn Rare Equipment Dissection Tools is an Equipment worth playing in Sacrifice-themed decks