The deck's commander, Firmuth, Sage of Corrosiveness, is a perfect example of this strategy, as he gets stronger as you mutate creatures under your control
Urzas Saga At this point, it may seem like Urzas Saga can do basically everything and that isnt entirely false
If hes attacking, untap him and there is an additional combat phase after this phase
If it gains menace, Bristling Boar can't be blocked
Theyre visually similar to a yin and yang symbol, which also reflects the way a lot of players see cats and dogs as opposites
Elspeth, Knight-Errant With its ultimate ability, Elspeth, Knight-Errant offers one of the most permanent forms of indestructibility you can get: an emblem that makes all your artifacts, creatures, enchantments, and lands indestructible