Trying to make progress past spider 16 up to auto 20.

Thought I had finally worked out the winning strategy from the champions I have available.

Dracomorph - A3 Decrease defense and weaken for 2 turns

Coldheart a - A2 multiple hit (because multiple spiders, makes sense.)

Coldheart b - A2

Roshcard - A3 Block damage for 2 turns

Dracomorph - A2 poison (doesn't really mater at this point)

Coldheart a - A3

Coldheart b - A3

Renegade - A3 reset cooldowns to repeat (and get the 4th coldheart hit I need to take down the spider)

I spent heaps of time and resources getting it all prepared (including spending all my legendary books I was saving for Arbiter on Roshcard to get his block damage down to 4 turn cooldown.)

I go in to win with my genius plan, all the speeds are tuned perfectly, it's all going well, everyone ready for that skill cooldown reset, and then... renegade decides she's going to do her A2 for no aparrant reason leaving the team to die.

Why?

Breaking my heart every time there is a spider dungeon event, like I have the perfect team to do well, but renegade won't let me (TT^TT)