Quest for Ula's Temple

At the beginning of your upkeep, you may look at
the top card of your library. If it's a creature card,
you may reveal it and put a quest counter on Quest for Ula's Temple.

At the beginning of each end step, if there are three
or more quest counters on Quest for Ula's Temple, you may put a Kraken, Leviathan, Octopus, or Serpent creature card from your hand onto the battlefield.