Calderox the Living Volcano

Calderox is a jungler. His is not humanoid, but a lava-based, slime-mold.

PASSIVE His passive allows him to gain 1 critical strike bonus for every 2 seconds he doesn't move, so long as he is half an inch from any wall. The moment he stops moving he gets an immediate 1x his current level as a padded critical strike bonus, so long as he is next to a wall. Basically, he makes entering the jungle (or specifically, being next to a wall) terrifying.

Q - Entomb - His body stretches out a short distance to engulf a nearby, targeted enemy in molten rock dealing them 20/40/60/80/100 dmg and stunning them for 0.2/0.4/0.6/0.8/1.0 seconds. The lava cools and breaks off. W - Lava Flow - He gains 90/100/110/120/130% Movement Speed and 20/40/60/80/100% Attack Speed for 2 seconds. E - Eruption - His body erupts and shoots lava into the air that rains down on his enemies in a radius surrounding him dealing 50/100/150/200/250 damage and slows enemies hit by it 10/20/30/40/50%. As the lava rains down, champion can pick any position within that surrounding hail storm radius and re-materialize at that new position. R - Explosion - His body explodes molten lava that blasts into surrounding enemies forcing them away from his current position and burning them for 300/400/500 lava damage.