From Brotato Wiki
Tentacle
Item
Tier 2
Stats
+3 % Crit Chance
+20% chance to heal 1 HP when killing an enemy with a critical hit
+20% chance to heal 1 HP when killing an enemy with a critical hit
Price
35
Limit
5
Unlocked by
Win a run with 
Lich
LichItem
Tentacle is an in-game item that can be bought from a Shop or can be found in a Crate. Most Items modify the Stats of the player, and some of them provide additional effects.