Kelzys, Hero of Wimbledon

Vigilance
When a creature you control attacks, you may
pay {3}{r}{r}. If you do, untap all attacking
creatures. After this main phase, there is an additional combat phase followed by an
additional main phase.
As long as Kelzys, Hero of Wimbledon is
equipped, you can attack with Kelzys, Hero of Wimbledon each combat during each opponent's
turn.