Cloudkin Currents

As an additional cost to cast this spell, discard a
blue card.
Create an emblem with ''Whenever you cast a
blue spell, if it was cast from your hand, create a
1/1 blue Elemental creature token with flying.''
Flashback—{2}{u}{u}{u}, Sacrifice three blue
Elemental creatures (You may cast this card from
your graveyard for its flashback cost. Then exile it.)