Fizz, the Tidal Trickster

Assassin
Fizz has +X/+0, where X is the number of AP
counters on it.
{3}{u/b}: Exile Fizz and all equipments attached to
it, then return they to the battlefield under your
control. Attach those equipments to Fizz.
Activate this ability only once each turn.
"Let me at 'em!"