If your power is redirection, then you're best off targeting people that haven't claimed. The rest of us have can target where we judge best. What you need to hope for is to redirect wolves into harmless places or harmful abilities onto wolves.
I'm not voided tonight, and I'll probably target Gnomish if no one else objects. If I've deduced her role correctly, that's where my power will be most useful (if it works).
Didn't someone who died claim a late game info role? That actually could be Grave Keeper: he only knows the dead, so he won't know much until end game, and his information will be of minimal use until then when we're weeding out false claimers.