New Teamfight Tactics Class Idea TOXIC pls read

I was thinking of a new class that i think would do great in this game. Toxic would be a poison or dot based class with characters like Cassieopia, Twitch, Teemo, Singed, Kog'Maw, And Urgot or Zac. i think toxic would be best ass a class with a 3/6 buff that could add on to the poison/dot damage that they do but i dont know exactly know what kind of buff it would be exactly. As for the origin and abilities for these characters i have some ideas for that as well (some of it may be incorrect as i dont have the most knowledge on the games lore so help for this would be nice). Cassieopia - Imperial Toxic - Her Q can work easily for a simple aoe damage that adds a poison dot (can add her e into it as well but not needed) or he W for a simple Poison Area on the map that will do a dot to anyone in it or you can do her R and give her a mass cc working the same way to stun anyone facing her. Twitch - Wild Toxic (\Ranger?) ranger could be a good add onto him and also give wild and ranger some more synergy but not needed - His R could be a great add if he has the ranger buff to make shred almost like MF with the attack speed boost, range, and penetration and can add a dot to his AA when he is using his R or his W for another simple aoe poison dot to go with the buff well or lastly his E where his AA can tank on a target and at max stacks he will trigger it (with this he can be manaless) Teemo - Yorlde Toxic - His ability would be that his AA will add his E to poison the enemy and then at full mana he uses his Q to enhance his next AA to silence the enemy and do extra damage Singed - ?(Exile?) Toxic no idea what origin he would be - E and W can work just doing what they do already (just make e do a dot too) or can make him have his R and when he uses it he can put out a cloud aoe poison (his Q) around him sort of like kennen Kog'Maw - Void Toxic - His E would be perfect for the class or his R can work but i think E would be best Urgot - Imperial Toxic - Q would be a easy aoe poison dot or could give him his R that would be similar to how Veigar ability works but with a blitz pull added and is based on their remaining health instead of level Zac (kind of a bonus idea) - ?(Demon?) toxic idk what he would be either demon could maybe work but idk - E could launch him to the furthest enemy to do splash damage and knock up or give him his R to do what it usually does For most of the characters abilities i tried to chose something that could do a poison dot damage so that the class bonus could be based around that and add onto the dot damage being done. Any feedback or ideas are welcomed and would like to know what people think about this.