Baik points at the Wizard with his spear. Today, you burn. A holy light comes down from the heavens to smite the evil wizard!

(Sacred Flame. DC 16 Dex or 12 Damage.)

Corvin summons a Spiritual Weapon behind the wizard that immediately lashes out at him, then follows it with a Sacred Flame of his own.

Spiritual weapon: Attack: 18 Damage: 7

Sacred Flame: DC17 or 3 damage

Baik where are you moving to from your current position you can't see him and if you don't move you would have to make another save at the end of your turn .(Eiren's square is free if you want to move there). Corvin you need to move at least five feet into the new room or make another Con save 

Wizard's Dex save (Baik) 11. The wizard dodges Baik's Sacred Flame with a laugh saying "I don't burn that easily"

Corvin's weapon to the back however makes a small wound.

Wizard's Dex save (Corvin) 21 and his is distracted by the pain of the weapons bite that Corvin's Sacred Flame catches him.

The Wizard casts a spell 6 and disappears from in front of Eiren. 

Xavier is up 

(Sorry again. Can I move to N14?)

Quote from BoboBoombang >>

(Sorry again. Can I move to N14?)

 Yes that will work 

Xavier will see the wizard attempting a spell and use counterspell in an attempt to negate it.  If the spell is 3red level or below it automatically succeeds

Quote from Teechu >>

Xavier will see the wizard attempting a spell and use counterspell in an attempt to negate it.  If the spell is 3red level or below it automatically succeeds

 

 Sorry, because you are still in the room with the Acidic vapors you don't have Line of Sight on the Wizard to know that he is casting a spell. Since you move after him there is no way for you to counter the spell. 

Move into the room and take a different action 

 Here is the map of everyone's position before the battle started 

Corvin will move just far enough into the new room to avoid the con check.  P14 work?

Quote from VanderLegion >>

Corvin will move just far enough into the new room to avoid the con check.  P14 work?

 Yes 

Xavier will instead move to R14 and cast hold person at 3red level targeting both apprentices requiring a DC 16 wisdom save or they are paralyzed.   They can attempt save at end of each turn

Apprentice 1 Wisdom save 18

Apprentice 2 Wisdom save 17

(Well I wasn't expecting both of them to pass😀)

Obviously these apprentices have been trained well as their minds reject the paralyzed on their minds.

The first apprentice casts scorching ray Targeting Velmine with the 1st ray Attack: 6 Damage: 8 fire damage, Eiren with the 2nd ray Attack: 8 Damage: 12 fire damage, and Baik with the 3rd ray Attack: 13 Damage: 6 fire damage. The first two rays miss but the third strikes Baik for for 6 damage. Then the apprentice moves to H13

The second apprentice casts Blur on himself. 

At the start of the round (next round Eiren will be first, by the book says it acts at the start of the 2nd round) a smaller version of the ooze that you just fought after your rest oozes out of the pool bumping into Baik and then moves to M13. It attacks Baik with it's Pseudopod Attack: 13 Damage: 5 bludgeoning damage + 12 acid damage. Hitting Baik for a total of 17 damage.

Eiren, Corvin, Baik, and Velmine are up 

Velmine takes a look at the battlefield and assumes the Wizard just teleported away for good. "Oh, so we've just gotta fight two of them? Feels like a wonderful time for me to do this." She says, just before she reaches for her Bag of Tricks and pulls a fuzzy object, which she throws just in front of her.

Bag of Tricks Animal: 6 (Giant Boar) (Rolling for hit points: 35)

"Wow, I'm pretty sure that's the strongest one I can find." The Tiefling notes, looking the giant boar up and down. "Well, here's my command, I want you to charge straight into the mage we can see clearly." She points to A1, and the boar moves to 18-19, H-I, before heading in a straight line towards the apprentice. (14-15, H-I)

Tusk Attack: 18 Damage: 14 Slashing (2d6 for the attack's normal damage, +2d6 for charging into him.) (If the attack is successful, the apprentice also needs to roll a DC 13 Strength save or be knocked prone.)

As the apprentice is about to be gored by the tusks he throws up a Shield and deflects the boars attack.

(Nice try there, I love that bag of yours)

(I know, it's pretty fun. The other items I picked for the magic items we can find were also mostly picked for fun, and I forgot to mention, Velmine would move to a place where she could move within range of the Apprentice next turn, like at H17.)

Corvin, Baik and Eiren are up 

Corvin directs his spiritual weapon to strike the nearest apprentice and launches another Sacred Flame of his own at the same target.

Spiritual weapon: Attack: 17 Damage: 11

Sacred Flame: DC17 or 13 damage

Baik stabs at the man next to him!

Attack: 8 Damage: 5

(You both are targetting A2, right? A2 cast Blur on himself the last turn, so you both should be rolling with disadvantage.)

(Ah, Crap, you’re right)

Disadvantage Roll: 25

(whew)

(I summoed the spectral blade at K14, which looks like it'd take 10 feet of movement from it to either apprentice, in which case I'd probably send it after A1 since he's not blurred.   Sacred Flame would probalby hve to target A2 since A1 is behind a wall from me)