It encourages players to play Wizards, Fighters, Rogues, and Clerics, but also asks them to play them in equal proportion, which prevents them from hitting the required density for most tribal effects
Essentially, Rev makes all your other creatures do their best Ragavan, Nimble Pilferer impression which looks seriously strong
Unlike regular Commander, however, decks can contain multiple copies of a single card and are comprised of 60 cards instead of 100, and unlike Draft, synergies are easier to create, as players pick two cards at a time
This white creature will see play in Constructed formats, plural
Read More: The 10 Best Dwarves In Commander 10 Sludge Monster Sludge Monster is a five mana blue 5/5 that gets to put a slime counter on up to one target creature whenever it attacks or enters the battlefield