Checkmate Unstable introduced what we call "outside assistance," which are cards that add a randomizing element by involving a person not playing in the game to make a decision that affects the game
Of the three, it is the most legitimate "split" card
This is not combat damage
However, you're likely attacking your opponents anyway, so its ability to unstick stalemates isn't quite as powerful
In creature form, however, it doesnt match up great against cards like Rekindling Phoenix and Chandra, Torch of Defiance
4) Mana first: build a mana plan that matches your deck, not your optimism Most Commander my deck didnt do anything stories are mana stories wearing a trench coat