HOO BOY - I wrote a lot - sorry in advance for the read time on this one - classic Kafka wall of text posting.
You’re using an endgame crafted only Troop and 2 Mythics and a fully levelled Hero Class. This is not what I would consider an easy strategy for most players. Just throwing this perspective in the mix.
It’s good you’re sharing your strategy though for other players with those things, it’s really helpful in these sorts of discussions!!!
I can probably offer up another team as well later when I have time with less mythics on it. Although tbh I feel like sometimes I have more trouble collecting Legendaries 
probably because I don’t put the same amount of effort into targetting them.
Looking at the whole picture, I think we have issues with crazily excessive looping teams and the feedback from the player base as well as the game data definitely reflects that (player base - not exclusively talking about this particular forum). This is fine when it happens and you’re the attacker and it’s terrible when it’s your opponent’s team doing it.
Rebalancing individual Troops and Weapons is sometimes needed, but we also look at - ok but if we nerf this Troop where is the issue going to shift to and is it going to be acceptable there or is there an overarching issue that needs to also be addressed. It does feel like the excessive looping thing has gotten out of hand generally. I’m not currently sure where the designers are at with their thinking on this one and if they plan to just look at individual problem Troops as we go or at the extra turn issue as a whole etc etc. iirc we did already buff Stellarix because the feedback was that it wasn’t good enough, it could be maybe we went too far in the other direction and maybe we need to review it again and bring it back to somewhere between how it was on original release and after the buff.
As I said, looping teams is fun when we’re doing it just not fun when your opponent doesn’t even give you a turn before smashing you, we don’t want to remove the fun so it’s about finding balance however this ends up being addressed.
Currently, the plan is to address the PVP feedback at least in part first and this is where Stellarix is causing pain points.
We’ve mentioned the not having a clear easy > normal > hard opponent for example
Also that you can be offered 3 opponents all with Stellarix x Wand of Stars teams.
If there were more options in your opponent selection maybe Stellarix and Wand of Stars wouldn’t even need to be reviewed.
So yeah there’s a bit to think on and we’re trying other tweaks first!
Ah, while I’m responding also just a reminder please to go easy on each other. It’s perfectly ok to disagree with each other but be respectful, I don’t want to see you telling each other to quit the game/game mode. Obviously if someone has taken the time to share their feedback they care about what they’re writing about and would prefer to enjoy the thing than quit. It also just creates a bit of an unwelcoming vibe if we tell each other to quit. We don’t want people to feel like they can’t participate in the community forum without being put on blast. Also discussing differing opinions is healthy, we have a wide variety of people playing GoW from casual to hardcore, lowbies to endgamers, PVPers, PVE-ers, Guild content vs solo play preferences etc. There are a lot of different opinions and likes and dislikes floating around the player base and we want to hear about all of them.
A good example is the Guild Wars feedback thread we have running at the moment - we’ve not only heard from players whose favourite game mode is Guild Wars, but also players whose most hated game mode is Guild Wars - and literally just this morning a designer mentioned how HELPFUL it has been hearing from players who hate the game mode. We need a variety of perspectives to get the best outcomes, so we should embrace diversity in thought.
I can also tell you we’re not likely to change everything based on one person’s opinion - so you don’t need to panic and jump on them for having it. And if they’re not the only person saying it - maybe the stance on it is more mixed than you thought it would be and we should hear out everyone’s opinions and evaluate and discuss them together and try to understand where each other are coming from.
Thanks folks and sorry for the long post!