Hiring a Merc in a Raid Instance
If you want to use a merc while in a raid instance, follow these instructions:
FIRST, before you start a raid instance, dismiss your merc. If using bots, get your raid instance formed first, THEN go hire a merc.
IMPORTANT: Do NOT suspend your merc while you are in a raid instance, or you won't be able to unsuspend it. You will have to dismiss it and hire a new merc. But if you have the portable merc merchant clicky, you can dismiss and hire a merc, anywhere, anytime.