Riptide, Playful Guardian

When this creature enters the battlefield, put X stun counters on Riptide, Playful Guardian Counters cannot be removed from this creature {4}{U}: Put a stun counter on Riptide, Playful Guardian, then put X stun counters divided among any number of creatures your opponents control. where X is the amount of stun counters on Riptide. Activate this ability only once each turn. Whenever you put a stun counter on a creature an opponent controls, put a +1/+1 counter on creatures you control, you gain 3 life