New Years Smoked Taco Meat Build

While trying to create a ploy build and realizing you can't debuff twice, I thought of a quite strong and annoying NY!Takumi build.

NY!Takumi (Spd+/Def-)
Kagami Mochi +Spd
Reposition/Drag Back (this spot is flexible)
Moonbow
Life and Death 3 or Swift Sparrow 2/Fury 3
Windsweep 3
Spd Smoke 3
Atk Smoke 3

This build 'smokes' (im f*cking hilarious) the entire enemy team, assuming that they're in close proximity. Since Kagami Mochi has the Res and Def Smoke built into the weapon, and Atk and Speed smoke added on also will be quite an annoying thing to deal with. Windsweep ensures that Takumi won't be taking any damage from decent speed distant counter units. So, most or all of the enemy team will have a -28 to all stats.

This is the 'fun' part.

With the addition of Gunnthra to the team, and her unique Blizzard tome, which adds total debuffs of the enemy team to her damage, similar to blade tome, she will be able to deal a whopping extra 35 damage. Also, if Chilling Seal is used, she will slap a fun Atk/Spd -6 to the unit with the lowest defense, leaving more room for Takumi to activate Windsweep 3.

Perfect duo, as both rely on each other to some extent.

However, this team only consists of two units, and a red and a blue unit would be well appreciated.

I'm still not sure what would make a good spot on this team other than strong tanks or dancers, but I would prefer Olivia and Azura.

Any Ideas?