The Psyduck Market

({t}: Add {u} to your mana pool.)
{x}, Sacrifice a Berry, or Food or Treasure
token: Search your library or graveyard for a Fish, Clamp, Crab, Nautilus, Squid,
Octopus or Trilobite card with mana value
X or less, reveal it and put it into your hand.
If you search your library this way, shuffle.