In short, CT_RaidAssist reports hp, mana, buffs, and debuffs of anyone or everyone in your raid. You can set it to notify when someone is debuffed with specified types as well as notify when buffs you can recast fade.

We've added 5 'MT Target' options which allow you to specify up to 5 MainTanks's which users can then select which 1-5 they want to show if the situation requires it. When shown, it will show you the target of the person set as MT. It's a bit similar to EQ's Target's Target function though with this, the tank doesn't even have to be your target.