Cool question ! I have a soft spot for Cloudians myself, I remember the archetype from when I was young. It was the first archetype of "can't be destroyed by battle" that wasn't actually an FTK for our younger selves because we could destroy them with some random card we owned that changed battle position. Plus I love counter mechanics.

PS : I do love Venom's I have found memories of never-ending game due to venom swamp