Are fire devils actually helpful against Urmahlullu?

Question

I see people summoning Fire Devils at Urmahlullu but he is immune to fire, so are they helping? Would it be better to summon mino archer or something else?

Answer 1

In my opinion it's "aint much but it's honest work". Personally if You have Rp + ek in team summon mino archers to they will deal more dmg due to ignoring monster shield