Assassin/Ninja Returning Player Need Help With Build

Hello i am a returning player who used to use the black build which focused on intelligence and defense for stats mainly (i dont even know if this black build even worked it was some random thing i found), i havent played wynncraft in years (maybe like 3 or 4 years). I recently came back and i am pretty sure my build is outdated or just garbage. What are like the new best builds for assassin? I guess i am looking for thunder related stuff just because crit is always a fun stat. I have seen builds for melee attacking a ton and dealing 0 damage with spells or the build where spells do a ton of damage, im fine with either? I havent really tried the melee attack spam build though since it seems more boring