In the game minecraft, in hardcore mode it is hard mode but if you die you lost your world, and an elytra is a pair of wings that let you fly, So, A "Cursed Creature" is what a minecraft youtuber becomes when they eventually beat hardcore, they just fly around behind their elytra machines for the rest of the series until they die, they just fly around, building machines.

It’s an acronym standing for Can’t Remember A Fucking Thing. It’s usually used to describe embarrassment at being unable to remember someone (CRAFT moment); going onstage as the lead in the latest theatrical performance and your mind goes completely blank (CRAFT situation); the next morning after a night when you got pissed as a fart and woke up in bed cuddling a traffic cone and a string of fairy lights wound round your prick.