Brick/Skill tree

Brick's three skill trees are Brawler which focuses on improving his melee combat abilities, especially while Berserk, Tank which focuses on improving his durability in combat, and Blaster which focuses on enhancing his weapons skills, with an emphasis on explosive weaponry.

Skill Tree

Starting Skill
Berserk Gain the ability to go Berserk. While Berserk, use the Aim and Fire buttons to throw punches. Also, you gain resistance to all damage and you regenerate health while Berserking. Duration: 18 Seconds. Cooldown: 60 seconds.
Tier	Brawler		Tank		Blaster
1	Iron Fist Iron Fist	Endless Rage Endless Rage	Hardened Hardened	Safeguard Safeguard	Endowed Endowed	Rapid Reload Rapid Reload
	Increases the melee damage you deal by +6%.	Increases the duration of Berserk by 10%.	Increases your maximum health by 12%.	Increases the strength of your shield by 8%.	Increases the explosive damage you deal by 3%.	Increases your Reload Speed by 4% and reduces Recoil by 6% with all weapons.
2	Sting Like a Bee Sting Like A Bee	Heavy Handed Heavy Handed	Bash Bash	Juggernaut Juggernaut	Revenge Revenge	Wide Load Wide Load
	Punching while Berserk causes you to dash forward an additional 4 feet and slug your enemies.	Killing an enemy increases your melee damage by 12% for a few seconds.	Gives your melee attacks a 10% chance to Daze enemies.	Killing an enemy gives you +10% resistance to all damage for a few seconds.	Killing an enemy increases your damage with all weapons by 10% for a few seconds.	Increases the number of Rockets your Rocket Launcher can hold in its magazine by 1.
3	Prize Fighter Prize Fighter	Short Fuse Short Fuse	Pay Back Pay Back	Diehard Diehard	Liquidate Liquidate	Cast Iron Cast Iron
	While Berserk is active, your melee attacks have a chance 6% to spawn cash prizes.	Decreases the cooldown of Berserk by 6 seconds.	After your shields become depleted, you gain a 8% damage bonus for 10 seconds.	Increases the amount of health you regain when you are revived by a friend or by Second Wind by 30%. Also increases the amount of time you have before you die when you are Crippled by 20%.	Dealing Explosive Damage to an enemy reduces the cooldown of Berserk by 1 second.	Increases your resistance to Explosive Damage by 8%.
4	Blood Sport Blood Sport		Unbreakable Unbreakable		Master Blaster Master Blaster
	Killing an enemy while Berserk is active regenerates 2% of your health.		When your shield is depleted, you gain 5 seconds of powerful shield regeneration at 3% per second.		Killing an enemy increases your Fire Rate with all weapons by 12% and causes you to regenerate 2 rockets per minute.

Check out the  skill calculatornote: LVL capped at 50.