Ajax, The Eleventh Harbinger

Haste
{t}: Place a riptide counter on target creature
you don't control.
When a creature with a riptide counter on it
dies, place a riptide counter on target creature.
Whenever Ajax, The Eleventh Harbinger deals
damage to a creature with a riptide counter,
deal 1 damage to each creature with a
riptide counter.