Guardian Variant for Aquifers

I believe that in order to add some more adventure and incentive to exploring Aquifers, a new cave variant guardian should be added. This mob would only spawn in Aquifers and compared to an ocean guardian it would look like a glow squid. As for how it attacks, it would be similar to drowned in the sense that some will attack at a distance with the magic beam and some will simply charge the player with their spikes, they will even be able to follow the player outside of the water to continue attacking. Finally, when this mob is defeated underwater it will drop (along with normal guardian loot) a large bubble that will slowly float up, and when the player touches it, they will gain extra air that will allow them to explore the Aquifer for longer.