Makeda3's Feat

Has been spoiled (this one like the Lylyth3 one has been confirmed)

Feat: Dance of Death - When a model in Makeda’s battlegroup destroys one or more enemy models in her control area with an attack, either Makeda can gain 1 fury point or 1 fury point can be removed from a model in her battlegroup in her control area. Dance of Death lasts for one turn.

That means that you can buy an attack and if you kill something remove the fury you just used to attack with. Put the bronzeback animus (beat back) on anything with reach and it will kill all the things, you can also do it with ranged attacks and the Mammoth has ROF 3. No word yet on her other abilities.