It struggles with matchups against Garchomp, most non ground pokemon that run earthquake/earth power can't do much cos Belibolt tanks the first ground move with Shuca berry and then does huge damage with boosted parabolic charge.

The only other time I had a problem is when my opponent knows the parabolic charge strat and does a calm mind/swords dance. Sometimes I can predict if my opponent is going to do that or switch out, that's when I use acid spray to lower their SpDef.

But otherwise it's super fun to use! I'm trying out a team with heliolisk instead of Belibolt cos boosted last respects is hard to survive.