From Brotato Wiki
Stats
Hitting an enemy removes +10% of their speed Max: 30%
-3% Speed
-3% Speed
Price
25
Limit
1
Item
Ugly Tooth 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.
Unique
Ugly Tooth is a unique item. Only 1 of each unique item can be equipped, and it will then no longer be offered in the Shop, and no longer drop from loot crates.
Ugly Tooth
Ugly Tooth slows down enemies when you hit them. The slow stacks up to 3 times for a total of a 30% slow.
The slowdown works on Elites and Bosses, and can make a large difference for those fights.
Ugly Tooth can also be rather powerful with Elemental builds that relies on Burning Damage to kill enemies.
Structures such as Turret or Landmines also applies the slow when they hit a target.