How do you get hallowed mimics to spawn
I'm assuming you're using the chest + key of light method, so when you spawn them, do it either to the far right, or far left of your arena, on the top layer.It can be summoned anywhere.Placing a key of light in a storage item other than a chest (such as a barrel) will not spawn the mimic.;Contents 1 common variants 2 special variantsFind yourself a mountain, or generally a place with natural dirt walls that isn't too deep (else you'll get golden mimics with double health).
Once the replica is created, it can be used to copy the movements of any object in the room.Just place the key in the chest (empty), close the chest and walk away.Rare hallowed, corrupt, and crimson mimics can also be spawned manually by players via a key of light or key of night (see the biome mimic section below).Mimics can be created by any means possible, but the most common way is to use a mimic arm.However, mimics spawned this way only drop the mimic banner.
They can also be spawned by putting a key of light into any chest.Set up dart traps aimed at the ground of each tunnel.