Wednesday Quest: Spirit Tribe II (for those elusive shadow bollas)

25 energy / 5 levels.  Drop rate is kind of bad.

Team Setup:
Leader: Any card that reduces shadow damage (I used Dark Witch++), or a card that prevents death with HP over 40/70%
Erinyes+ (her skill is invaluable)
Jotunn+ (safety measure; could be another erinyes+ for even more safety)
The last two cards could be lightning/holy so you can attack with all the diamonds.  I tried using armor piercing and a 1000% attack card pair, but they ended up doing 1 damage to the shadow bolla anyway.  I was still able to clear the quest with them.
Follower: Whatever will pair with your leader suggestions I posted above (e.g. if you went with Dark Witch, have a Yasha/Encantado/Cacus follower, or vice versa).

At a minimum I would try to have around 5000+ HP (NOT taking into account your ally) and a decent amount of RCR (1000+ total?)  Attack power is irrelevant for this strategy - infact, having too much may hurt!  It focuses more on how well you can manipulate the board more than going in guns blazing.

You will only face chaos and kawsa enemies.  What element they are is random each playthrough.

Stages 1 and 3: Take your time, and make only 1-2 combos per turn.  Once only one is remaining, so single chains to buy time for your skills to activate: namely, Medusa Eyes.  Each enemy has an 8 turn cooldown, so don't rush.  They also only do around 2400 damage each, so recovering from an attack is easy.

Stages 2 and 4: Use Medusa Eyes in these rounds.  They only have a 5 turn cooldown.  I primarily did as many 3-chains as possible.  Each enemy does 9999 damage, so the undead soldier/soldier's will skill is required.  Assuming my experience with how those skills work currently is still correct, you should be safe even if 2 of them remain when you are attacked.  Always look to make one chain that your target is weak against if possible.

Stage 5: Just give priority to keeping your HP above whatever is needed to survive from a fatal strike, then focus on combos to get all your cards to attack.  This is the sole reason I recommend a shadow damage reduction card as leader.  It attacks every turn for 4000, and it may be hard to keep up unless you have an amazing healer card.  With good timing of skills you can have Medusa Eyes up mid-fight to make it a lot less stressful.  It's actually one of the easier parts of the quest.