Early game · first 8 minutes
Use cover to dodge Card Trick and take short trades. Activate Royal Pestments when Wraith uses Full Auto, then shoot while the barrier holds.
Rat King vs Wraith
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Mid game · Walkers
Use Royal Pestments as Wraith approaches for Telekinesis. The barrier can absorb her follow-up gunfire while you are lifted.
Late game · Patron
Slam your banner down when Wraith arrives if she uses Project Mind to attack your team. Send rats and focus fire before she can teleport away again.