all cards in foundations mtg Commander Decks — Five New Precons Landing October – Saga Concepts Play Boosters are specially balanced for play and fun to open MtG Foundations Common Refute #48

While this card has a lot in common with the other battlesphere, there are a number of differences as well

But Prowess combined with Double Strike

Spawning Kraken, Serpent of Yawning Depths, Quest for Ula's Temple, and Whelming Wave are sea creature support cards that benefit krakens as well

You can really sow some chaos by including a card like Gahiji, Honored One

Shift Anna Mystical Majesty so they cant protect themselves, or take advantage by playing Olaf Happy Passenger cheap

Getting to flicker this and bounce three things into opposing libraries is downright nasty , and provides another controlling option for UW/x flicker decks to take advantage of