Zeffo Tomb Guardian stuck at 94%

Not a bug I believe. Coliseum is designed to work against you in all aspects if you can't pay to win. In this case their ability "Roar of the crowd" the more points you get the more damage they do and less damage they receive. Playing against ZTG requires a mixture of patience, RNG and preferably investment of some cash to boost your collectable characters. This new leveling system is obviously designed to be another progression wall to frustrate you into spending money.

ZTG is absolutely terrible and not even remotely fun imo but essentially this is what needs to be kept in mind as I've found out during this Era, for those who are interested:

1. The longer the battle takes, the more likely you will time out
2. The longer the battle takes, you will do less damage 
3. The longer the battle takes, they will do more damage 
4. If you attack them without Armor Plates, their next attack stacks in offensive damage coupled with points 1-3 above in tandem! (Very bad for beams, becomes very bad eventually for stuns too, basic attack less severe)
5. Plate management is essential for beams and Stuns
6. Focusing one enemy is key while AP controlling the others. Beams will some times go through with 3 stacks, giving that enemy 30% TM > leads to different abilities used by enemies > allows for plate control planning for the enemies with beam / stun for their next attack > focused damage on the one doing basic attacks 
7. Plates decrease their damage taken, saving (for example Drogan special) for a plateless enemy is worth it

I cleared T7 last night with BAM (L), Zeb, R5, Ward, Drogan, I had failed miserably 4 battles before trying MM L and getting Cara in there for TM manipulation but that led me to do less damage and getting stuck at the end. My loaned units are at 77, Zeb 84, R5 83, Ward 75. I mainly focused on clearing Plates before their beam attack to reduce damage and for their stun attack (or had Zeb taunting, using Ward to clear stuns if needed or R5), when they had their basic attack I pushed hard on a single target, rarely used R5 special except if stun train happened or getting Zeb to taunt the boosted basic attacks. R5 DoT damage is crucial and BAM Birds too, especially close to the end 

The temple guardians do this every single round no matter what team.  I had 2 level 80 and one level 75 and the lone guardian is still immortal.  Coliseum is horrible in general and the guardians make it worse