Hotay takes his chances and flees blindly into the lounge whilst the door is open (I assume he is untied from the cart while at rest)
Bats move onto Faelor, provoking AoO from Iskandil. (Faelor may have difficulty casting, DEX check for Somatic components)
I forgot Faelor's readied magic missiles spell from earlier, so I adding the damage to bats j. Sorry!
A wolf charges at Falfaelor from the corridor.
Grizel can not escape the expert skill of Strahd, who maneuvers the grapple to take his first bite of Grizel. The spirit guardians flit around the battlefield, and Strahd's skin turns from moonlight blue to cracked grey, peeling into dust. "You cannot kill me with just magic, cleric!"
Rolls
Wolf e bites Iskandil - (1d20+4, 1d20+4)
1d20+4 : (10) + 4 = 14
1d20+4 : (13) + 4 = 17
damage - (2d4+2)
(44) + 2 = 10
Hotay morale - (1d20)
(9) = 9
Iskandil quarterstaff (2h) bats j - (1d20+7)
(9) + 7 = 16
Bats j bite Faelor - (1d20+4)
(10) + 4 = 14
Bats j damage - (1d8+4)
(3) + 4 = 7
Faelor damage - (2d4)
(34) = 7
Wolf g bite Falfaelor, pack tactics - (1d20+4, 1d20+4)
1d20+4 : (8) + 4 = 12
1d20+4 : (11) + 4 = 15
Falfaelor damage - (2d4+2)
(33) + 2 = 8
Grizel piercing damage (bite auto-hit) - (1d6+4)
(4) + 4 = 8
Grizel necrotic damage, also lowers MAX hp - (3d6)
(343) = 10
Strahd radiant damage (SG) - (3d8)
(577) = 19