"Miss" Spell

In my map i want the archers to miss 50% of the time as to reduce their effectivness and increase the realism. I dont want to do this by making all units have 50% evasion because that would make them avoid Melee attacks aswell.. I was thinking of basing it off Curse spell but i dont know if io can make that passive... Any ideas?

Also i was thinking about modifying the critical spells so that instead of saying a red number, says something like : "Killing Blow" or something....

Cheers,

Garith.

Critical spells cannot be modified to say anything other than the "ammount of damage dealt!".

About the first question, you could use a critical strike based ability to simulate the "miss" on archers: just give the archers a critical strike that has a 50% chance to deal 0% damage. Of course, that wouldn't display "miss" above archers, but "0!" instead.

Alternatively, you could cast an infinite duration curse on archers using dummy casters, but the moment you have dispell abilities in your map, your triggers get slightly more complicated as, whenever a dispell ability is used, you must check all the archers that lost the curse buff and recast it on them... Actually, that's not that hard, you could easily do things this way if you wanted.