Trap a ghost using the Slime Tether.
Wear down a ghost with low Trap Resistance, then daze him with a few slam attacks. Once the ghost is dazed, drop a trap away from it, so as not to trap it immediately. Equip your Slime Tether, then attach one end to the ghost and the other end to the Muon Trap! This can be done fairly easily during the Civil War battle or against Cultists in the cemetery.
With practice, a player can Slime Dunk ghosts without first wearing them down.
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