Modding for [Gauss]'s 3rd ability, Thermal Sunder.
For warframe Aura, select the one you like, [Enemy Sense] mod (Reason: If you turn on the 4th ability Redline, achieve 100% gauge, you create two zones: cold air from thermal sunder (press) and flame (long press) that are 3rd mobility, cold air + flame = explosive, or 100% gauge, this explosive zone of [Gauss] reduces the enemy's defense by 100%, so it can be replaced separately. And even though the gauge is not 100%, if you continue to build the enormous fireball zone over and over again, you may be completely defenseless or badly cut, so please refer to this process as well.
p.s. Have a nice day and enjoy <3