Zakum Helmet question(s)

1. Yes it is worth it. Average of +15 each in str/dex/int/luk as well as huge accuracy and avoidability boost. To me this is one of the biggest "bang for your buck" items in the game by far.

2. You need to be level 135 to get exp from it, but most "professional" squads that sell the helm service will take attackers over level 145. But if you're in a nice guild that does low level bossing they'll bring pretty much anyone who wants to go.

3. See here for stat variance: https://maplelegends.com/lib/equip?id=1002357. You generally wanna get a helm with stats as high as possible for the stats you care about. For example I'm a warrior so I ideally want 17str/17dex helm. You're a mage so 17 int is optimal. To me as long as you get 15-17 on the stat you care, it's good.

4. Current market price is 15m. For 18-20m you can buy "AFK service" which means you go in and die while the sellers resurrect you over and over until the helm drops. This makes it the whole thing much less stressful since you don't need to pot and can p much afk.

TLDR Get one, its among the best items in the game