So this gamepass will cost 800 robux (450+350) and named Quintuple X's

(In the shop or the gamepass description will give the perks information)

Perks: 2x mastery, 2x boss drops, 2x materials chance

(sea events, npc, boss, raid boss)

2x Exp upon killing a boss in a quest, 2x luck on gacha

(So you dont rot getting common, uncommon everytime you spent 440k)

Note: If you have both or just one of them 2x mastery or 2x boss drop, will not lose anything. Chances of getting fist of darkness also doubled

(from sea beasts), And obviuosly trade able.

Ok it may sounds overkill but seriuosly 800 robux for that is hella worth it for grinding levels, materials etc.