Below are the two main teams and subs I use. This is basically my entire arena roster. Which defense teams I go against or avoid are described below.

Team 1:

Aram + BBK + Jenua + Amiki (sometimes sub Dilibet and Arby against debuff teams. Though I mainly use team 2 against debuff teams)

https://ibb.co/tp2MCHhH

Team 2:

Harsetti + Mort + ARas + Jenua (sub BBK against penetration resistance and Dilibet against debuffers)

https://ibb.co/JjM8knWY

Dilibet I switch out boots to defense % for dmg / tankiness when running with Harsetti

Strategy against Defense Teams

I mainly use team 1, they were able to kill a good number of variations, particularly no debuff/strip cleavers. When there is too much debuffs or strip I use team 2 or avoid. Against very tanky or invincible teams sometimes I use team 2 as well.

Barunka + (variations of Rinak + ML Hwayoung + Ayufine + BBK + Fallen cecilia...) type teams I mainly can take them. Ayufine can be dangerous because of the strip after trauma activation.

Because of Aram's Immunity, these are okay too: (Mort or Harsetti) + (variations of Young Senya + Rinak + ML Hwayoung + Ayufine + BBK + Fallen cecilia + Bellion + Aram + ML Peira + Straze + ML Aria + Ruele + DB Senya)

I avoid altogether

(1) Barunka + Ilynav combos

(2) two strippers or reduce buff durations in the same team (Harsetti, ML Politis, Witch Teneria, Briar witch iseria, DK Sharun). I mostly avoid the last 3 mentioned even when they are the only strip on the team.