Does uncanny dodge work automatically on every seen attack the rogue gets hit with?

Elf trance: does it affect long rest for Elves?

Is the bard’s Jack of All Trades feature intended to apply to initiative?

Does metamagic Quickened Spell allow a sorcerer to cast 2 regular spells a round?

Could I get some clarity on Thieves Tools and lockpicking. Do you need the tools? Do you need proficiency?