<p>The maximum that can currently be achieved is 197%. 207%. It is possible to get a bonus of 182% from unlocking all bosses. This will increase as more bosses are added. The other 25% is if you have the boss as Mastery progress level and put it on your boss slot you get an additional 25% equipment loot bonus. Also, the boosted boss will eventually be increased past 250% if there are ever enough boss points to reach that bonus in game according to CIP.</p><blockquote><p>"Completing boss entries to collect boss points pays off: The equipment loot bonus of the boss slot can be increased gradually up to 182% by accumulating points."</p></blockquote><blockquote><p>"With every server save, a randomly drawn boss of the Archfoe category will receive a temporary boost until next server save. During that time, slaying the selected Archfoe will count as three kills for your Bosstiary and the boss will also carry more equipment loot than usual. This boost will always be higher than the maximum equipment loot bonus which can be achieved through the Bosstiary."</p></blockquote><p>Sources:<br>https://www.tibia.com/news/?subtopic=newsarchive&id=6733&fbegind=1&fbeginm=5&fbeginy=2022&fendd=31&fendm=8&fendy=2022&flist=11111111<br>https://www.tibia.com/forum/?action=thread&postid=39313781#post39313781</p>