Singed rework concept

Passive: Insanity Potion Expending mana causes singed's sanity to deteriorate, causing him to laugh. Each time singed laughs due to this, he restores 10/15/20/25/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100 health (Obviously, the cooldown of this is equal to the runtime of singed's laugh).

Q: Poison Trail 13 mana per second, 1 second cooldown Toggle: Singed leaves a trail of poison behind him, lasting for 3.25 seconds. Enemies who walk into the trail take 50/70/90/110/130(+.6 AP) magic damage over two seconds. Enemies exposed for more than 7 seconds at a time become woozy, and lose 10% their armor and magic resist.

W: Mega Adhesive 70/75/80/85/90 mana, 14 second cooldown Singed covers a target area in potent adhesive for 5 seconds. Enemies who are on top of this are slowed by 35/45/55/65/75% for the duration. If singed is on top of it, he is immune to knockups, knockbacks, and pulls.

E: Fling 100 mana, 10 second cooldown Deal 50/65/80/95/110 (+6/6.5/7/7.5/8% targets max HP) (+75% AP) magic damage to a target enemy and fling them behind you.

R: Empowered Bulwhark no cost, 100 second cooldown Gain a shield equal to 30/40/50% your maximum mana, lasting up to 25 seconds. As long as the shield persists, you gain 35/50/80 armor, magic resist, and movement speed.