There is some plugin capable of multiplying the experience gained x2, x3, x4, to players (with a custom permission) or that on weekends the experience is x2 for all people. Money multipliers earned too?
*Multiplier of exp, money & others:
-X days in the Week for all players with custom broadcast to warn all player that the multiplier weekend has started/finished (schedule)
-For ever double money and exp multiplier for a specific player (with the correct custom permission)
-The same but for groups.
-Double money gained from kill vanilla/modded entities (choose what mobs can be double and what multiplier amount)
-The same but certains actions like fishing, mining, etc…