Please check the update notes.
Mondays, Wednesdays, Fridays and Sundays
Monsters around your level drop Golden Monster Bells. You use these bells in a map, which summons monsters based on the average level of the monsters in that map. (Can't be used in maps with no monsters, or where Teleport/Flash Jump is disabled, as well as other random maps.
The rock mobs will drop Jewel Synergizers and Jewels, and rare Black Dragons will drop Step Pop coins, Jewel Synergizers, A/S Jewels, Jewel Rings, Jewel Belts, Accessory for STAT/Attack/Magic Attack scrolls, or Chaos scroll variants (including Jewel Ring Chaos scrolls).
Tuesdays, Thursdays, Saturdays and Sundays
Monsters around your level drop ticket fragments after accepting a quest from Cassandra. Up to ten times per day per character, you can hand these in for Jewel Pop tickets. These tickets send you to a map with Jewel thieves for five minutes. The thieves drop meso bags and Special Jewel boxes, which give random Jewelcrafting items and Step Pop coins.
Mondays, Wednesdays, Fridays and Sundays
Monsters around your level drop Golden Monster Bells. You use these bells in a map, which summons monsters based on the average level of the monsters in that map. (Can't be used in maps with no monsters, or where Teleport/Flash Jump is disabled, as well as other random maps.
The rock mobs will drop Jewel Synergizers and Jewels, and rare Black Dragons will drop Step Pop coins, Jewel Synergizers, A/S Jewels, Jewel Rings, Jewel Belts, Accessory for STAT/Attack/Magic Attack scrolls, or Chaos scroll variants (including Jewel Ring Chaos scrolls).
Tuesdays, Thursdays, Saturdays and Sundays
Monsters around your level drop ticket fragments after accepting a quest from Cassandra. Up to ten times per day per character, you can hand these in for Jewel Pop tickets. These tickets send you to a map with Jewel thieves for five minutes. The thieves drop meso bags and Special Jewel boxes, which give random Jewelcrafting items and Step Pop coins.