Goldeen

Islandwalk, Protection from red.
Horn Attack - When Goldeen does combat
damage, you may draw a card.
Channel - {1}{u}, Discard Goldeen. Return target creature an opponent controls to their hand.
Evolve {2}{u}{u}{t} Sacrifice Goldeen. Search your
hand and library for a card named "Goldking"
and place it onto the battlefield tapped.