I wouldn't necessarily say I'm cowardly for running in there almost naked and level 10 with a +3 weapon since I had to defeat a god manipulating the very expansion of the universe to get down there, but turning Mimic Tear into Moongrum is pretty brave.
Mimics get an infinite amount of all items, (bar the flask). That means they can heal for an infinite amount of times of you are holding the meat dumplings. Plus it isn't affected by status effects like poison or scarlet rot so no downsides either.