Who wins?
Rillaboom vs Kingambit
Rillaboom wins 78% to 22%. 93 more put them in the same row. From Pokemon VGC (Pokemon Champions) Tier List. Pick a side.
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
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
Pokemon VGC (Pokemon Champions) Tier List: the full ranking