Those numbers seem low. Remember that Raquel gets +10 Hit from Riven's Charisma and +15 Hit from her personal skill; by my count, she should be all but guaranteed to bring him down to single digit HP.
Also I don't understand why Raquel needs healing at all. Isn't she at 25/39 and fairly far from danger?
...I'm a little worried about Ami being that close, with Derick there and close to dead and all. I can see a few ranged attacks coming her way is what I'm saying, if she goes down we may not be able to get Derick in time.
That's true. If Wodan or Paladin B moves, the Mage Knight and Archer D can drop her, at which point it becomes impossible to rescue Derick before he dies. That...would be bad.
Also, I did some more numbers on Seyena. Seyena can one-shot the Bishop fairly trivially if we don't mind her not healing. Then, Riven can take out the Paladin and I can go after the Wyvern Knight; crit or no, that will drop his HP down to where Gregor and/or Charlotte can eliminate it as well.
These numbers seem better, though I'm dubious that we can afford to not have Seyena heal.
I'm also curious about the Bishop. If he sits still and attacks Anja, she'll just counter him and all will be well.
What's the worst he could do otherwise? I guess he could get within range of Alex depending on our positioning?
Hit doesn't help; I'm just assuming she'll successfully hit him. The reason for HP is because on the counter, Wyvern Knight B's Spear will do 28 damage should it impact Raquel, enough to one-shot her and prevent her second attack altogether; on the other hand, if she's allowed to connect with both attacks, she can reduce him easily to 3 HP even without a crit. If the Bishop doesn't go after Anja and instead attacks Alex, Alex will almost certainly fall (certainly if we add in the Mage Knight), and Wodan will plow right through our lines and start hammering the ever-living daylights out of us.
...
Actually, with the Mage Knight alone...oh, that is so not good. OK, so keeping Alex on his feet is a lost cause. One Meteor or Elfire will smash his HP to bits again, Gregor or no, and Wodan will still be free to charge forward. We need to heal all three people this turn - Alex, Valor, and Tantallos - to keep Wodan on the far side of the wall. We need to get rid of as many threats as we can as well; of the three, that means Wyvern Knight B, Paladin A, and Bishop B. Any one of these, combined with Mage Knight, will be enough to open a hole for Wodan and his forces. Riven and Raquel can respectively eliminate Paladin A and Bishop B. Wyvern Knight B is the riskiest; Charlotte can reduce his HP and Edwin sleep him, I think, which would keep us intact.