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Armix gets to control the board, which also helps it keep attacking to discard more cards on future turns

Take a look at Kozilek, Butcher of Truth and Kozilek, the Great Distortion

Disney Lorcana is an upcoming game that sees two or more players competing against each other to be the first to gather 20 lore

While this seems a little bit off-theme for a deck that is this aggressive, these Ghostly Prison-like effects do tend to play really well in Commander, as your opponents are often forced to choose between developing their board or attacking you

On the front side, -1/-1 is enough to kill the formats smaller utility creatures or be used as a combat trick, and creatures die often enough that the Morbid ability shouldnt be too hard to trigger and give you a premium removal spell