Most universal gear @ Overdox

Started playing Overdox a while ago.
For those who dont know - Overdox is a mobile battle royale type game where you fight on many different grounds with many additional rules. There are no classes, but each weapon has it's unique attack combos and special ability. There are also passive abilities and bonuses for armos sets.
Managed to get to Master III, but struggling to get past the bar, since many players in challanger have awoken legendary weapons and armor sets.
Would appreciate if anybody helped me to figure out which weapon and armor set is top tier and most universal in terms of grinding.