So, I'd slept the night before I went out to go mining in the mining world, and I decided to do a little bit of surface mining. As my luck would have it, a Phantom spawned, took out half my health, I tried running away and ran into a Creeper, then another Phantom spawned, so I ran a different direction, into a bunch of Skeletons, and then the two Phantoms came down and killed me before I could change direction again. Neither of them should have spawned in the first place, as I'd slept the previous nights, and as a result, I lost a Diabolic Pickaxe that had Mending on top of its normal enchants, and I lost an Elytra with Unbreaking 3 and Mending. Is there anything that can be done? Or am I just out two nearly impossible to reobtain items forever?