Who wins?
Kingambit vs Rillaboom
Rillaboom wins 78% to 22%. 93 more put them in the same row. From Pokemon VGC (Pokemon Champions) Tier List. Pick a side.
throwaway45257 on Kingambit: kingambit hit 47% of 1760+ teams in august. defiant punishes every intimidate in the format, supreme overlord makes kowtow cleave nuke late, and sucker punch picks off whatever is low
throwaway26101 on Rillaboom: rillaboom showed up in m-c and instantly hit #1. grassy surge, fake out, grassy glide priority and wood hammer with miracle seed. 46.6% on ladder and on ~54% of tournament teams. it's S, no debate
Pokemon VGC (Pokemon Champions) Tier List: the full ranking