1.21 chained chests

I think that cool use for the trail key would be chains that would be put on chests inside of the trial chambers. those chests could have better loot than the normal ones. There could be up to three chains on one chest and the chest chain would not be obtainable in survival mode. If player broke "chained" chest the loot would get destroyed. Those chests could also contain some unique loot like new weapons obtainable only throught them.