Tribal Flames is honestly not good in a single-color deck. for 1 damage is not mana efficient at all.

Dragon's Claw could be good here.Pyrotechnics is a crappy version of Violent Eruption, it is at sorcery speed and an extra mana.Arc Lightning is the same exact card as Flames of the Firebrand.

Sorry i don't play EDH so i don't know if some of these cards are legal for the format

Bovine073

I have Flames of the Firebrand for flavor reasons (Chandra), but I could always add in Arc Lightning

Dragon's Claw is a cheaper version of Staff of the Flame Magus, does almost the same thing, but always good to have more than one (The staff adds life for every mountain played too)

I'm going to pass on Violent Eruption though, mana really isn't an issue in EDH as much as it is in other formats, so having to pay more for an identical spell is not that big of a deal (that and I don't know what to take out to add it, as i would want to keep pyrotechnics as well)