Macchia the Calming Protector

Companion - Your Commander is a Human with
base Power, Toughness and Mana Value each 3 or
less.

At the beginning of your end step, put a Shield
counter on your Commander if it does not have one.

Commanders you control have Defender as long as
they have a Shield counter on them.

Pay {2}, remove a Shield counter from a Commander
you control: Scry 1.