Gisella, Lord of Waves

Eminence, Landfall — Create a 0/1 blue Crab
Tap five untapped Crab you control: Search your library for a Leviathan, Octopus or Kraken, reveal it and put it in your hand
{t}: Create a 3/3 blue and green Legendary Turtle named "DinoMaster"
When leaves the battlefield, put a +1/+1 counter on each Crab token you control