Most lever bosses have a cooldown of 20h, 7 days or 14 days before they can be killed again. However, there are special items that allow players to reset this cooldown and immediately kill the boss once again. According to both TibiaWiki BR and TibiaWiki Fandom, the items are:
- Devourer Core (World Devourer)
- Shrunken Head (The Gravedigger)
- Twisted Marionette (Court Warlock)
The last two were recently introduced in the Winter Update 2025, which is what sparked my interest the most.
My question is if there's a cooldown where a player has to wait until using these items again? I couldn't find any information regarding this in either fansite.
This would impact significantly on bosstiary progress, especially for The Gravedigger and Court Warlock since they are archfoes and can be boosted.
Nowadays, it's very common that players gather right after server save to kill the boosted boss and kill it again in 20h within the same server save, earning 6 kills in bosstiary by just killing it twice.
Depending on how these items work, this number can go from 6 kills up to at least 9 (on boosted day). If these reset items can be used without any type of cooldown or restriction, then technically a player who has enough of these tiems and teams to gather, could fully complete these entries in a single server save, especially on days when they are boosted (like today with the Gravedigger).