Knight of the Pearl Trident

Flash
When enters the battlefield, take a Kraken,
Leviathan, Octopus, or Serpent from your
hand and put it into play or search you library
for one and do so; then shuffle your library.
Return that creature to your hand at the end of
the turn.
To Merfolk part of Nobility is a willingness to call
for help when it is prudent.