I hate when people clearly put a lot of work like you did into a champ and get no feed back so here comes some feedback :). While i think a sludge monster champ would be cool it might be more realistic if her main form is more humanlike but clearly polluted(colored like sludge and maybe partially covered but not a giant blob) just like the river.
Regarding her abilities:
P: interesting, i overall like it, i think that perhaps upon reaching "critical mass" aka enough raditation she should be allowed to use her ult, kind of like gnar, if she choses not to ult after this point, thats when the self damage starts
q: fine skill
w: fine skill
e: I think sludge trail should instead be changed to sludge flow and do damage in a a target area the same size as your ulted e but also make it cause a massive slow, having it follow behind you really only works for singed and his gas and would require designing the whole kit around it for it to be effective, plus if you change it this way it will reflect the same skill when shes in her pure form
r: like the ult, it works well with her thematically, ill talk about her ulted skills below
- p: I think while shes ulted she should regenerate health depending on how much radiation she expelled
- q: i think you should make this into a damage skill that she can use, likely a small aoe since she wont have any other damage skills while ulted, im thinking something like karthus lay waste but a tiny bit bigger and ofc made of water
- w: this skill would be better as a small whirlpool instead of just a tide, perhaps the tide effect would be better on the q
- e: cause it to knock all enemies that enter it to one end or the other and make it able to let her select which direction it spawns, it could also speed up allies running through it
- r: (usable once per ult) make this like your q effect but make the heal the same as the passive i suggested and make this skill effect all allies in an aoe, also make it cleanse all negative effects before applying the spell shields, this would give her ulted kit more power and also really bring her together as a river spirit who overcomes her contamination and purifies herself
overall i like her a lot, she would vary between an ap mage and a healer, she'd basically be similar to gnar but with an ulted focus on healing and ap instead of tanking and ad. Also I take back what i originally said about her blob lol your drawings are just too cute, and it would be funny to slide around the rift as a blob of radioactive waste and then explode into a powerful river spirit haha
