Be careful not to destroy walls near your spawn when using Grom's Super because these walls allow Grom to pressure the enemy team while being protected from them.
Grom's Watchtower Gadget is very useful in maps with large bushes clusters such as Cavern Churn or Snake Prairie because it allows Grom and allies to see into bushes, allowing them to scout enemies easily. You must be aware of its placement since it can be easily destroyed along with the fact that it already loses health over time, so make sure to place it out of reach from most enemies.
The best way to use Grom's Foot Patrol Star Power is to chase enemies since his Super can be devastating. You can bring an enemy to low health with his attacks while charging his Super in the process, chase them, and throw his Super at the right time.
Enemies will likely walk diagonally in an attempt to dodge Grom's attack. Try to force enemies towards wall clusters where they are restricted and burst them down.
Remember that enemies will move in an attempt to dodge Grom's attacks. With Grom's X-Factor Star Power, keep this in mind, as if they move and fail to dodge the attack, they take extra damage.
With Grom's Radio Check Gadget, it's best to use it on targets that aren't moving, like the Heist safe. It can also be used for map control as enemies would naturally be wary of getting in your range. This can cause devastating damage and high value as it effectively fires three attacks for the cost of one ammo.
Try and learn how the knockback works on Grom's super: once this is learnt, you can use it as a combo with his Radio Check Gadget. Aim the Gadget at where the enemies will be knocked back to. This is very effective as enemies will be unable to dodge the Gadget as they are being knocked back by the Super. If done correctly, it can deal over 5000 damage.
Changelog
21/12/21 Grom became available to play in the Training Cave.
22/12/21 Grom became available in the Grom Challenge.
29/12/21 Grom became available in Brawl Boxes.
04/01/22 Grom's Super recharge rate was increased by 1%.
11/01/22 Grom's X-Factor Star Power was added.
25/01/22 Grom's attack damage was decreased to 900 (from 1000). The number of hits necessary to charge his Super was increased to 6 hits (from 5). His Watchtower Gadget health was decreased to 1500 (from 2000).
18/02/22 Fixed an issue that prevented Grom's main attack from fully charging his Super in 7 hits.
01/03/22 Grom's Super projectile range was decreased to 5.67 tiles (from 8.33). His main attack and Super now takes the same time to land regardless of the distance thrown. Grom's Radio Check Gadget was added.
02/03/22 Grom's Radio Check Gadget no longer reveals Brawlers inside bushes while also inside Leon's Lollipop Drop Gadget.
15/04/22 The Bunny Grom skin was added.
27/04/22 Fixed an issue where Grom's X-Factor Star Power increased his attack's Super charge rate.
29/06/22 Grom's main attack damage was increased to 1100 (from 900). Grom's Super damage was decreased to 1600 (from 1700). His True Silver and True Gold skins were added.
25/10/22 The FrankenGrom skin was added. It was featured as a Brawl-o-ween skin.
12/12/22 Grom's main attack damage was increased to 1160 (from 1100). Grom's main attack projectile speed was increased by 10%. Grom's main attack and Super visual effects were reworked. Fixed an issue with FrankenGrom's Super visual effects.
12/01/23 Grom's main attack projectile speed was decreased by 4.5%.
28/02/23 Grom's main attack damage was decreased to 1060 (from 1160). Grom's class was changed to Artillery (from Damage Dealer). Grom's main attack and Super visual effects were reworked.
25/04/23 Bunny Grom now costs 79 Gems (from 49).
15/05/23 Grom's health was decreased to 2800 (from 3000).
05/09/23 All Brawlers' health and damage were increased from 5% to 10% with each Power Level.
24/10/23 Grom's flavor text was changed from "Watchman Grom's priority is to keep guard. He throws his trusty radio at his enemies. His Super is a big bad bomb that breaks walls and pushes back enemies!" to "Grom is a brawny security guard with one weak point: the flashback he gets from his time working at a kindergarten. Those kids were merciless."
10/11/23 The Dasis Grom skin was added. It was featured as a Warrior's Journey skin.