Nerf

A nerf is a term that's used to describe the weakening of something, either through updating a game or by releasing a sequel. Nerfs are often done to try balancing towers, by weakening towers that are considered too strong. The opposite of a Nerf is a "Buff," which involves the strengthening of something between sequel games and game updates.

BTD Battles Mobile game updates

 * The Bloonchipper was used incredibly often due to it being able to stall M.O.A.B. Class Bloons with its Supa-Vac ability which allowed the user to outlast their opponent, deal lots of damage to them with Super Wide Funnel, and help defend against spaced bloons. While the Bloonchipper did receive nerfs in game updates, they didn't stop it from still being used. However, in update 4.1 the Bloonchipper received a massive nerf in the form of removing the ability for both Super Wide Funnel and Supa-Vac to suck in Z.O.M.Gs. This in turn drastically weakened its ability to outlast opponents and thus lowered its usage from being one of the most used tower in the game, to one of the least used. While the Bloonchipper is nowhere near as good as it used to be, it still performs reasonably well versus spaced bloons, and still has some loadouts that use it (albeit not many), such as Wizard Farm Chipper and Tack Village Chipper.