Kaylie Shorthalt, Flautist

When Kaylie Shorthalt, Flautist enters, create a
Treasure token. (It's an artifact with "{t},
Sacrifice this artifact: Add one mana of any color.")

Other creatures you control enter with an
additional +1/+1 counter on them for each mana
from a Treasure spent to cast them.

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