A.K.A The real reason Magma Chamber still hasn't shown up yet.

Maw is a second Heat-based champion. Where Rumble wants to stay near the middle of his Heat gauge, Maw prefers to stay near the edges, each of which gives him benefits that let him fill a different role. Overall, he probably tends toward the Ryze/Vladimir durable caster role.

Lore: Like Maokai before him, Maw gained sentience in a burst of violence and anger as the League was manipulating his home; unlike Maokai, his emergence was so destructive that the volcano whose heart was being crafted into the Magma Chamber was cleaned of all the magical impurities placed there in an attempt to create a new Field of Justice. Confused at his own dual nature, Maw has agreed to serve in the League for the forseeable future, on the condition that his consent be acquired for any changes to his volcano birthplace.

Passive: Fire & Stone: Whenever Maw uses an ability, he gains 10 Heat.

Aspect of Fire: While at 90-100 Heat, Maw gains an extra 10% CDR and 10% Magic Penetration.

Aspect of Stone: While at 0-10 Heat, he gains 10/15/20 Armor and Magic Resistance.

Q: Lava Blast - Maw throws a fiery rock at a target, dealing X/X/X/X/X (0.N AP) damage and causing the target to take Y/Y/Y/Y/Y% additional damage from all sources for 5 seconds. If Maw is in Aspect of Stone, this stuns for 0.5/0.75/1.0/1.25/1.5 sec. If he is in Aspect of Fire, it deals the same amount of damage again over 5 seconds. Short cooldown.

W: Generic AoE damage skill #143 - Deals damage. Snares if in Aspect of Stone, bigger AoE if in Aspect of Fire.

E: Molten Shell - Maw surrounds himself with a protective shell of fire and stone for 4 seconds. He gains a (X/X/X/X/X)% movement speed boost and (Y/Y/Y/Y/Y)( 0.N AP) shield. If in Aspect of Fire when activated, the shield burns more strongly, returning (2/4/6/8/10)% of damage taken to the attacker. If in Aspect of Stone, the shield hardens; shield strength doubles.

R: Volcanic Apotheosis - Passive: Aspect of Fire and Aspect of Stone persist for 2/3/4 seconds after leaving their ranges or until Maw enters the other Aspect.

Active: In a massive burst centered on Maw, the ground yields and smoulders. Enemy units on this patch have their movement speed reduced by (X/X/X/X/X)% and their armor and magic resistance reduced by (Y/Y/Y/Y/Y). This lasts for 8 seconds, during which time Maw is considered to be in both Aspect of Fire and Aspect of Stone.