Rumble

Rumble lives or dies by how he handles his resource. Instead of mana, he builds Heat with every spell he casts. Once Heat reaches 50%, he steps into the Danger Zone, and all three basic abilities pick up bonus effects. Hit 100% and he Overheats: his attack speed climbs, but his spells are locked until the machine cools down. The skilled Rumble keeps Heat hovering just inside the Danger Zone for as long as possible, avoiding a misstep that tips him over at the worst time. That tightrope is the reason his difficulty rating is among the highest on the scale.

For a mage, his fighting style leans heavily on short-range attrition. Flamespitter sprays a magic-damage cone over three seconds, which punishes melee champions who try to trade with him head-on. Scrap Shield offers both defense and a speed burst, so he can dive in or back away quickly. Electro Harpoon gives him reach: it slows enemies and strips away magic resist, and holds two charges so the effect can be stacked. All three abilities become stronger while he sits in the Danger Zone.

Fights won by geometry

The Equalizer defines zone control in this game. It fires a line of rockets that leaves a wall of flame behind, damaging and slowing anything caught inside. Set across a choke point or dropped on a bunched-up team, it can settle an objective fight before a single auto attack lands.

Rumble usually plays top or mid as a Fighter/Mage hybrid. He is sturdy enough to brawl up close and hits hard enough to burn down teams standing in his flames. He suits players who like managing a distinctive resource system and who think about fights in terms of space, carving up the battlefield with a well-placed ultimate.