Dagon, Father of Seas

Eminence- As long as Dagon, Father of Seas is in your command zone, if you a cast a Kraken, Leviathan, Octopus, or Serpent type creature, create two 0/1 blue Fish Clerics with "Sacrifice this creature: add {u} to your mana pool"
Sacrifice a creature: Draw X cards & put X +1/+1 counters on Dagon, Father of Seas, where X is the sacrificed creature's toughness