Mirror match in arena with Z Palpatine leader

1. Which zeta, he has 2
2. Assuming his leader is zeta, Palps has a variety of TM gains: 15% for every shock, 20% for every debuff inflicted (so stunning 4-5 people give him an extra turn easy, and shock gives him 35% because it comboes with debuff gains) if he has 2 people shocked he can let the hate flow and get a instant CD reduction on storm. And he gains TM whenever a debuff expires, so Vader culling feeds him TM a lot.
So yes, he does have a doping in cooldown

Depending on squad he gets even more TM, e.g. Thrawn zeta unique or Shore unique. A smart usage of shock and ability block is crucial on winning mirror matches imho. Also swapping in the tank for OG Han helps a lot on gaining momentum against hard to beat mirror squads.

Teams were the same:
Palpatine, Vader, Thrawn, Shore, GK.
I chose this enemy because my Vader had higher speed, and in fact I moved first and things were good, but suddenly it happened.
The problem is not the turn meter gain, but that enemy's Palpatine did: AOE, single shock, AOE, single shock, AOE.... where is the cooldown?

I know, so it's a bug.

Sounds like he got off more shocks or you cleansed his debuffs more than you think.