I’ll have to think through with the face as a sorlock, that’ll take a bit of time. Quick answer on getting things wet though, clerics have create / destroy water as a low level spell. The main reason for the sorcerer levels, beyond being able to twin haste, is to be able to quicken that so you can put that out on turn 1 and still use your big lightning spells. It’s not something you would need or want to do every encounter of course, just like the maximize effect with channel divinity it’s something you pull out where the enemies are tough enough to warrant it to double your damage. Ideally you pair those things together in fact to auto deal up to 160 damage, ignoring resistance while you’re at it. Water pots, like elemental arrows, are good options to supplement your resources if you’re interested in doing so but they aren’t remotely necessary, that class combo has all the tools it needs baked in.
