No Advantage but Strategy (Illima's Gumshoos)

So you may not have a Fighting-type Pokemon on you (which would be awkward) but you at least have a Pokemon that can resist its all-powerful Z-Move (c'mon, you should expect this boss to attack you with that powerful move). By paralyzing it, and wittling down its health slowly, you do eventually beat it (even if Illima used some healing items)

Captain Illima sends out Smeargle! (level 14, Normal-type) (2/2)
Strengths: none
Weaknesses: Fighting
Immunities: Ghost