When Grover, Ironroot Barkeep enters the battlefield choose any number of permanents that have at least one counter on them. For each permanent add one counter of a type already on that permanent or remove a counter from the permanent.

{G}: Put Grover, Ironroot Barkeep from the command zone into your hand. This ability cost {1} more for each time you have activated this ability this game.

Partner (You can have two commanders if both have partner.)