Knightmare Kirby

: Knightmare Kirby's loyalty is equal to the total life of target opponent. Knightmare Kirby, can be your commander
-X: Exile X permanents your opponents control, draw x cards, gain x life, target opponent gains x life, takes x extra turns, and skip their next turs
-20: Spells you cast, cost only Phyrexian mana to cast, and can't be countered, spells, opponents cast, cost twice more to cast, or they're countered.