Beached Leviathan

When Beached Leviathan enters the battlefield,
put 4 time counters on it.
At the beginning of your upkeep, remove one
time counter from Beached Leviathan.
If Beached leviathan has no time counters on it,
sacrifice it.
Sacrifice Beached Leviathan: All creatures you
control get +3+3 until end of turn.