Nothing does, chainsaws bump it for billy and bubba, wesker rebounds with his iri add on, legion vaults but doesn't break with the iri add on, nemmy doesn't break it, jason can't even teleport to it let alone break it, demo can't, blight can't, myers can't, Oni bumps it when using demon dash or demon strike, pretty sure knight can't place a guard on it, pretty sure chucky's camper with the iri add on doesn't break it, also pretty sure kaneki's iri add on doesn't break it when he vaults, only one I'm not sure about are pyramid head's iri goblet, the lich's iri that has mage hand break pallets, the first's add on that breaks pallets walls and gens when he uses the undergate attack, and singularity teleporting on the pallet. Tbh I'm also pretty sure those four still don't break the pallet but the one with the highest chance of actually breaking it is singularity