Commodore GuffHow it works & interactions with other cards

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At the beginning of your end step, put a loyalty counter on another target planeswalker you control. +1: Create a 1/1 red Wizard creature token with ": Add . Spend this mana only to cast a planeswalker spell." −3: You draw X cards and Commodore Guff deals X damage to each opponent, where X is the number of planeswalkers you control. Commodore Guff can be your commander.