I'm creating a mod for my warrior and I'm trying to detect when a Buff/DeBuff has been cast on MY target. If I trigger a buff check like UnitIsBuff on the SPELLCAST_STOP event, will the spell be on unit or is there a delay?
On another note, does anyone know the texture/effect for Intimidating Shout? It's not listed on WoWWiki.
My experience has been that for most situations like this there's an arbitrary delay due to effects like latency. I would recommend that you test it (multiple times) to see if it behaves consistently for this case, since I haven't tried this one myself directly.