like aiming + magic arrow is good, because make MA hit more enemy of it will usually it, is the same for Crossfire. (Even if Crossfire is much better, b/c MA have a number of hit, wich it mean limitated use). each dmg on each monster of MA count as 1 tick. So if i hit 5 monster the count of MA is -5 shoots. While a skill like MS is true multihit and will hit for “X” number of hit all monster (if have enought AAR or Linker or Circling)
Crossfire is know as garbage skill for the bad positioning and the not true AoE.
With Aiming, and increased Hit Box of enemys, Crossfire should be much better skill because don’t suffer anymore of that badpositioning thx by Aiming that increase Enemy Hit Box.
TL:TR: if Crossfire is garbage b/c can’t hit a good amount of enemy at same time with aiming become much better because can hit much more monsters at same time.
Sorry my bad english if something is not clear i will try write it better.