Magic block question

What does magic blocks do?
Is that the same thing the NPC at wrap 2 required for zaj gears?
Which combination is the best?

does anyone know anything about magic blocks?

Collect letters to spell the words. There is a list of possible items u can get from each word on forums somewhere. It’s crazy hard to spell a lot of them tho. They tend to drop from zaj bosses in the anniversary event that happens in the summer.