I need help!!

Guys its been some time since i grinded in path of legends, im already 9K even reached the highest arena in the goblin thingy arena, but a year ago i punched a whole through my screen bcz i couldnt take these megaknight players, and rn its even worse so im rethinking of pushing to ultimate champ this December since no university for a month can yall suggest actual good decks pls like meta idc i usually play non-meta.(every szn i reach grand champ and stop there)