I guess the good thing about Disable is with Virus, someone else can cast it at a really stupid time (some people even use it as part of an opener in a long duration fight where the really really big hits come further into the fight than the first few seconds, and reuse whenever it comes off cooldown). "/p Casting Eye for Eye on <tt>/Virus on <t>!/Hey look at meeee!" So at least there is that, the healer gets to decide what ability to apply the damage reduction to, which is normally one of those long slow cast bar ones.