Sharktopus, Simic Krasis

Companion — Each creature card in your starting deck with a converted mana cost greater than 3 is a Kraken, Leviathan, Octopus, Shark, or Serpent.
Haste
Whenever Sharktopus, Simic Krasis attacks, reveal the top card of your library. If it's a Kraken, Leviathan, Octopus, Shark, or Serpent, Sharktopus, Simic Krasis gains trample until the end of the turn.