Teaches swimming lessons to disadvantaged Plants in his spare time.
Strategies
With
Sea-Shroom is a relatively simple card, holding a mediocre statline and the Amphibious trait.
While it has mushroom and Amphibious synergy, Sea-Shroom has no kind of notable positioning in any kind of deck. Amphibious decks have better cards to run such as Spyris and Lima-Pleurodon as 1 plants with nearly the exact same statline, or even Pear Pal with the additional Team-Up trait. Mushroom decks wouldn't find any good use in him either due to there being many mushrooms that are cheaper or have useful abilities; while Sea-Shroom can defend zombies on aquatic lanes, the Kabloom class already has many soft-removal cards that can remove aquatic zombies.
Against
Sea-Shroom is a frail plant that doesn't hit very hard, but his Amphibious trait might be a nuisance in some situations. Nonetheless, something simple like Rolling Stone, Bungee Plumber, or Celestial Custodian should be able to destroy him easily.
In the Behind the Seeds trailer, the lower part of the Sea-Shroom was originally supposed to be submerged in its own pool of water, similar to Octo Zombie and Octo-Pet.