You have 80 6*s with 27 of them being leggos and prime Epics for Arena like Madame, Seer, Skullcrown, finished Arbiter missions.
Tag Team is just stupidly overloaded with high-powered teams....but with the rooster you have it should be a minor task to get to Silver levels in Tag team...
Another good team that has not been mentioned before:
Shazar (speed lead) - Archmage Hellmut (Turn meter and buffs) - Ursala (more buffs) - Seer.
Team 1: Speed Nuke
Arbiter lead (300+ speed), Kymar, Serris, [Correct Affinity Nuker]. Kymar prio A2 to AOE sleep, speed tuned to act right after Arbiter with no cut-ins. Nuker slow geared to act after enemy team wakes up and loses their turn.
Team 2: Speed Provoke
Shazar lead, Lyssandra (300+ speed), Maulie, [Correct Affinity Nuker]
Team 3: Seer
Krisk (prio a2), Ursula (prio a3), Brakus (prio a3), Seer (prio a3). Krisk, Ursula, and Seer running 300+ RES, built tanky. Brakus built glass cannon, but with high acc so his fear hits.