I've participated in roughly a dozen ZTF tests across closed and open beta and I'm a big fan! It has original mechanics, a solid story, and great mission pacing. I've enjoyed seeing it improve over the cycles. Loving all the new music in the TF as well. I have a few suggestions I would like to be considered before it's finalization:
-The challenge fight is missing a timer similar to other 4* challenge fights. A standard 20 minute timer would suffice but seeing how quickly the fight can be accomplished I would be a bigger fan of a 15 minute timer. I believe the chance of running out of time is slightly trivialized at the 20 minute mark as this is no longer an issue on even slower 4* challenge teams.
-In mission one Flashfreeze currently has a placate that was nerfed from a TAoE to ST recently. Instead of this small arbitrary hurdle that puts the fight on pause I think her using the Cryonic Judgement slightly more frequently could make for a more interesting engagement. She could also use something like "Frozen Aura" to panic the team into being slept/slowed prior to the Cryonic Judgement. Separately I also think patches free of ice around her could create a "musical chair" situation for players to have to stand on to avoid it and the sliding.
-In mission 2 I'm fairly certain I observed the Leviathan's/Arachnid's Bounty not prioritizing and using Hurricane when it became unheld. This was post 11/13 changes.
-In the mission 2 challenge fight it can be very difficult to see if the Leviathan's/Arachnid's Bounty is held among all the other animations occurring. Is there an additional effect that can be added or the Bounty made larger?
-Lastly we are still missing the challenge fight reward/accolade power. Perhaps farfetched but to distinguish the reward from others and as a reference to other MMO's in the process I would love to see an attempt at a "Mount". I'm imagining a reskinned Void Skiff/Rocket Board/Magic Carpet in the form of the nemesis horse or a spider. The Spidernados have a hilarious animation that perhaps could be utilized. Other ideas include a golden Nemesis Staff that can knockdown allies, a power analyzer in the form of an accolade power, a reward merit vendor, or a S.T.A.R.T vendor spider that other players around you can also access. It's a common practice for 4* teams to take a screenshot after a successful run with their new reward so something visible is definitely preferred.
Big thank you for all the hard work and dedication that went into ZTF!