Echo's optimal placement is in the Blue slot of the team. Echo should avoid Yellow as it is best used by Rigor.
Echo acts as the starter of this team to set up the Amplifier Class passive while quickly closing the gap with a Yellow 3-Ping, simultaneously setting up Rigor’s QTE to benefit Stigmata. Echo should swap to Stigmata as soon as she has closed the gap. Infinitas Awakening on Echo is necessary to use this rotation opener consistently.
Additional Inver-Shards can be obtained through the Voucher Shop.
SSS-Rank provides strong improvements to buffing potential, damage, and overall gameplay. Echo's Signature Weapon provides access to Weapon Harmonization which can drastically improve this team's performance in War Zone due to the synergy 4 set Da Vinci provides with Rigor, along with improvements to gameplay and buffs.
As other slots are better used by other members, Stigmata takes the remaining position in the team.
Stigmata’s SS-Rank drastically increases her Signature Move's damage. SS3-Rank provides significant Energy gain, which can considerably increase DPS if utilized properly. Signature Weapon is very strongly recommended to quickly gain consistently high amounts of Stigmata Will stacks to maximize her Signature Move’s damage.
Rigor is set on Yellow for optimal synergy with her teammates. The optimal start to this team’s rotation relies on Rigor’s placement in Yellow, while Echo’s 4 set Da Vinci from Weapon Harmonization can guarantee consistent use of her QTE.
Additional Inver-Shards can be obtained through the Tactical Assessment Manual and Voucher Shop.
Rigor's Leap should be considered a minimum investment for this team as it increases her DPS by a significant amount, and at higher ranks, provides Physical Resistance reduction debuffs. Rigor should be at least SS-Rank in this composition, as the ability to reapply her Defense reduction debuff from off-field can greatly improve the team's potential output. SSS-Rank and Signature Weapon both provide increases to her Defense reduction debuff.