Shark of Inciting Frenzy

When Shark of Inciting Frenzy enters the battlefield, create a number of 4/4 blue Shark creature tokens with haste and oceanic equal to
your devotion to blue. (Each {u} in the mana costs
of permanents you control counts toward your
devotion to blue.)
At the beginning of your upkeep,
sacrifice a creature.
Blood in the water, hunger on the mind.