Gafgar buffs dwarf units and doesn’t really provide much else the support auras are great but there are better heroes to get if you plan on playing dwarf.
Pyro Pincers
Gafgar slams his massive pincers, causing flames to shoot from the ground, dealing X burning damage to enemies in the target area. Bonus based on Might
Doesn’t cost energy to use, so worth it.

Startling Blow
Whenever Gargar attacks there is a 25% chance of him casting Startling Blow, dealing X damage to nearby enemies, and stunning them for 3 seconds. Bonus based on Might
The stun is nice works against heroes very strong if you get lucky.

Repairman
Gafgar is a gifted mechanic. When he is on the battlefield, all allied mech units have their max hit points increased by X%.
Very strong ability helps keep mechs alive which is always nice.

Dwarf Warrior Specialist
As commander of the Dwarven forces, when Gafgar is on the battlefield, all allied Dwarven Labrorers, Technicians, and Engineers have their damage and max HP increased by X%.
This is one of the strongest Unit buff auras in the game because dwarf engineers have one of the highest scaling and base stats in the game.

Temporary Repair (costs 1 energy)
Gafgar repairs all allied Mech units as well as his own. Repaired Mechs will recover a fixed amount of HP over a period of X seconds.
Healing units that normally cannot be healed, yes please.

Iron Shield (costs 1 energy)
Gafgar strengthens his Mech, turning it into an iron shield. He reduces the amount of Damage he receives by X% for X seconds.
I wouldn’t have him in the front of the line getting hit so this skill isn’t all that great, not worth the energy cost.

Building Gafgar
(not enough data)

Equipping Gafgar
(not enough data)