Best core and combat for Sandstorm?

[fleet lintel]

I just got a 4* one and am curious before making a mistake

[violet viper]

I put fireline as a combat since his one SA does acid damage in a large radius, so having fire in a large radius boosts the affectiveness, as for core, I just mindlessly put vitality, no really thoughtout reasoning for that though

[brave folio]

Equipping a combat bot that deals fire damage is a great idea, as Pestilence already said. As for a power core, you can’t go wrong with a Rejuvenate or almost any of the prime cores (I’d avoid Vector or Amalgamous on this bot, but the other ten can all make sense depending on your squad’s needs).