How to make Singed a better champion

There are two things people complain about with Singed: His passive is boring and generally he's not fun to play against because just runs away most of the game. My solution is to make his poison passive, and make successful spell casts activate the poison for a short duration.

Passive: POISON TRAIL After affecting a champion with a basic spell or casting his ultimate, Singed begins leaving a trail of poison for 3 seconds. The trail lasts for 3.25 seconds. Enemies caught in the path are poisoned for 2 seconds and dealt magic damage each second for the duration. Continual exposure renews the poison. (20 + 35% AP) -- Lowered the base damage, but increased the scaling to help it out. Also, his ultimate is now more of a damage spell.

Q: MEGA ADHESIVE (6 second cooldown) ACTIVE: Singed covers the target area in a potent adhesive for 3 seconds, slowing all enemies within for the duration. (35 - 75% Slow) -- This is a spam spell to keep the poison trail up, but is a small target that you need to keep landing in order to pressure the opponent. Sort of like Karthus's Q in size.

W: VAMPIRE POTION (10 second cooldown) ACTIVE: Singed hits a target area with a powerful potion, healing for each enemy champion hit and healing for increased amounts if they are poisoned. -- This has a heal on it, to make up for the removal of his passive and the stats on his ultimate. Similar to the heal on Darius's spin, but casts at a short range.

E: FLING (16 second cooldown) ACTIVE: Singed charges in a target direction with increased movement speed, flinging the first target enemy over his shoulder, dealing them magic damage that is capped against minions and monsters. Singed continues to the end of his charge after hitting any enemies. --Sort of like Volibear charge, but Singed can't change direction (like a dash or jump ability).

R: INSANITY POTION (100 second cooldown) ACTIVE: Singed brews a potent blend of chemicals, granting him a more powerful poison trail for 15 seconds. Poisoned enemy champions now also spawn a mirror image of themselves that only they can see. Mirror champions attack them for the duration of Singed's ultimate, or until they are killed. Mirrors take double damage and deal 50% damage. Enemies can only spawn 1 mirror for the duration. -- Made ultimate into a true insanity potion, as watching people fight invisible enemies is pretty great.