Since I already have Ares and Amaterasu (let's just take Amaterasu for this situation), I'd probably get Svarog and Su Daji from the Miracle tickets.

Balanced team comp= Joan (Ambush), Ama, Svarog, Su Daji, Agni
40% Debuff on both frames.
40% permanent ATK buff when Svarog is awakened.
50% damage up from Daji's rampage.
Fire attribute damage up from Agni.
Healer not required due to regeneration and life steal from Ama and Daji respectively.

Damage team comp= Arthur (Ambush), Ama, Svarog, Su Daji, Agni
Possible ATK damage up buff= 110% now instead.