Aang the last Air Bender

When Aang the last Air Bender enters the battlefield, untap {x} creatures you control .When Aang untaps a creature this way, put a stun counter on a tapped creature you don't control.
{w}{u}{b}{r}{g},{t}: Transform Aang the last Air Bender
"In every battle, there is a spark of hope, a glimmer of peace, and the potential for harmony."