Daelia, the Southern Storm

When Daelia, the Southern Storm enters the
battlefield, it does X damage plus 3 to any target,
where X is your devotion to blue.
{4}{u}{u/b}{t}: Return target creature card with
mana value X or less from your graveyard to the
battlefield under your control with a corpse
counter on it, where X is your devotion to black.
Create two 1/1 blue merfolk creature tokens.
At the beginning of combat on your turn, you may
pay {w}{w}. If you do, put a +1/+1 counter on each
merfolk, wizard, and warlock you c