Do Buffs..

Overwrite/replace another buff if the abilities that casted them are based on the same spell?

For example, I have bleed, based on acid bomb, and poison, based on acid bomb. If I cast bleed via dummy unit, the unit will have the buff bleed. If the cast poison on the same target with bleed, would the bleed buff be removed and be replaced by the poison buff?

I need to know, as it may screw up my system.

hmm..
That's a pretty good question.
I dont think they will overwrite as long as they are different buffs.
But it cannot be that hard to find out?

Different buffs will not override.

Ah thank you! I smell reppage pwnage for you :)

Different buffs will not override only for auras. They will override for buff spells that are based on the same spell.