Rumble generates value by staying in fights and applying constant DPS. The build must increase duration and zone pressure.
Ruby Crystal
Omnivamp AP, Rumble trade in continuous with Q Flamespitter
burn on Q Flamespitter and R Equalizer DoT
Dash for repositionner the R Equalizer in fights
Sorcerer's Shoes
Stasis
trades repeated with Q Flamespitter in an AoE activate Grasp to booster his HP.
Extra shield enemy mages that try to the punir outside of his zone of flammes.
Lane sustain compensate for pokes enemy before his power spike.
Accumulated HP to be tanky during his engages R Equalizer in the middle of a team.
Scales AP to that the R Equalizer is devastating on the zones entire in late game.