If your deck is really leading hard into the mechanic, Spear Spewer is a worthy inclusion, but it is by no means a necessity for those types of decks
According to Pokemon Company, the main motive behind the acquisition was securing its printing partner and trusted access to print manufacturing for the foreseeable future
Other notable inclusions from the Pokmon Scarlet & Violet video games include Wiglett, Fidough, Greavard, Armarouge, Scovillain, Cetitan, Klawf, Lechonk, Maushold, Mabosstiff and Revavroom
Water decks are a staple of competitive play, already powered by formidable cards like Starmie ex, Articuno ex, and the unforgettably effective Misty
And while I love Glass Cannon decks, especially Storm -- Zada, Hedron Grinder is an all-time favorite of mine -- they often are relegated to the "last game of the night / let's get a fast one in" because they either pop off and win quick or they do absolutely nothing