Beached Yamato

Defender
Your opponent can chose to attack Beached Yamato when declaring attacks. During your end step if Beached Yamato took combat damage put a -1/-1 counter on it.
{w}{w}{w}: Deal 1 damage to target attacking creature.
{w}{w}: Put a +1/0 counter on Beached Yamato
unless a opponent taps a creature (activate this
ability only once each turn and only if Beached
Yamato's power is less then its base power)