GM Blog : Happy Holidays!

and just as long as you know it, 20 summons means that NO ONE will be hitting the boss with any sort of precision. it'd be like... the maple story equivalent of spray-and-pray from FPS games.

Melee attacks acquire targets in order of spawn (AoE do too), the only ones that don't are projectile attacks which generally hit the closest monster.

When a boss is summoning monsters, Warriors can always hit the boss if they're standing in range of it.