A Simple Change To Teemo's Toxic Shot

Right now, because of Aery and Comet Teemo gets unfair bonus poke damage vs melee champions that can't reach him, which makes laning against him frustrating.

As such, this got me thinking about what could be done to nerf his poke damage enough without totally gutting him because after lane phase he starts to slide off a bit. The culprit of Teemo's unfair poke is his E, Toxic Shot. On-Hit damage is 10 / 20 / 30 / 40 / 50 (+ 30% AP) and the poison (after full ticking) is 24 / 48 / 72 / 96 / 120 (+ 40% AP), this gives each individual auto attack 34 / 68 / 102 / 136 / 170 (+ 70% AP) free bonus damage for just right-clicking the opponent and walking away. This ability is an extremely annoying ability because of how easy it is to apply the damage, not only that but it's damage that costs Teemo nothing because it has a 0 mana cost and 0 restrictions outside of landing the auto attack. You could try to argue Twitch's passive or Vayne's W, but is far less restricting than those 2, especially in the early game. Twitch's poison does 1 true damage per tick over its duration at level 1 with a single auto attack and Vayne needs to land 3 auto attacks on the same target to set off its damage, this makes Teemo's E far more deadly because it just requires 1 auto for the damage to take full effect and has a stronger DOT in the early game than the other most complained about rodent in the game.

The damage itself would not be as bad if it actually costed Teemo something, so here is the thought. Teemo's E becomes a toggle like Ashe's old Q where each auto with the toggle on costs mana for the effect. Riot isn't a fan of the pure-passive spells like these anyways, so making it where Teemo players have to press a button that isn't just Q for once for their harass.

To be fair to the Teemo players and their last hitting for minions, the spell could look like this:

Toxic Shot [E] Mana Cost: 10 / 15 / 20 / 25 / 30 mana per basic attack while Toggled On Cooldown: 2 seconds between toggles (reduced by CDR) Passive: Teemo's basic attacks deal 5 / 10 / 15 / 20 / 25 (+ 15% AP) magic damage.

Toggle On: Teemo's basic attacks now instead deal 10 / 20 / 30 / 40 / 50 (+ 30% AP) magic damage to struck enemies and poisoning them, dealing an additional 6 / 12 / 18 / 24 / 30 (+ 10% AP) magic damage per second for 4 seconds. Each subsequent basic attack refreshes the poison's duration.

I feel this simple change could help alleviate Teemo's tilting poke somewhat while still allowing Teemo to do Teemo things with the same damage as before while toggled on. It also makes Teemo players be more interactive with the little rodent and mindful of his mana.