Seasonal challenges

[Redmark]

I feel like some of the seasonal challenges weren't entirely thought through

I've tried hundreds of times to do things like RPvE under 3 minutes with fire deck on any difficulty, and 99% of the time, you've already lost before you summon your units if you're up against Nature, Fire, Twilight, Lost Souls or Twilight + Lost Souls. Bandit + Stonekin and pure Bandit are the only theoretically possible ones, you need to split push and micro a ton and you need to have just the right enemy units to spawn or it's over. If you get bouncers instead of sorceresses, you have a chance. The maps with Skyrakes also feel doable.
What also frustrates me to no end is how Bandit Vanguards are some of the buggiest units in the game. They constantly ignore damage from mine and eruption, they're incredibly sticky and hard to dispatch, these units single-handedly will ruin almost all of your tries. I also experienced Sunderer's Sundering ability sometimes not dealing any damage to buildings.

A challenge that simply feels impossible is Into the Jungle in expert difficulty using only fire cards. There is absolutely not enough time or power to defend your base from the constant waves of attacks while trying to push through a Razorleaf that takes reduced damage from all sources, surrounded by 4 defensive towers, Dryads and Maulers.

Whoever came up with these challenges, they should be able to prove that they themselves can complete these challenges. If you write checks, you better be able to cash them.

[Metagross31]

I have tried the rpve in under 3 minutes a few times and this one is really tough. My best attempts were at the current Map of the Month, difficulty 1. It's a fire map, but a generous layout. One thing that bugs me with this challenge though, is that difficulty 1 maps can have bosses, so sometimes only at the very last camp you see that this run never had the potential to be fast enough. Luckily, the runs are short so a reset is not too punishing. Btw, I did not beat it in under 3 minutes yet.

The ITJ solo Exp pure fire run has been done by a few people already, some might have shared their replays/decks already on Discord. I did not try it myself yet, but it is definitely possible (albeit very challenging, which I think is a good thing).

[Majora]

We like to stress that Nightmare challenges are aimed at the highest level of players, and are also not needed to reach the top rewards. 

You will be able to collect Promo Sunderer in the season without doing Nightmare missions. You will need the 2nd and 3rd batch of challenges (in addition to most repeatable) though, which are releasing in July and August. 

Additionally, the season lasts 4 months, and we are now on day 9. While some Nightmare missions can be frustratingly hard, every single challenge so far has been completed. I highly advice players to not burn out on a specific challenge if you are not having fun. We tried to put content for everyone into the season. This will result in some challenges being too easy, and others being too hard for certain players. 

I don't want to dismiss the feedback or even frustration players have with certain challenges, we will collect all feedback and take as much of it into account for the next season. But we build the season specifically so you can pick and choose what kind of challenge you want to do. Some of these harder challenges also cause players to figure out strategies (Radical just wrote a guide on ITJ for example: 

 Play whatever you find fun, there is plenty of time in the season left, and two complete batches of challenges (and another nightmare one) coming up too!