My guess on a shadow milk counter comp (Devil is fire spirit)

Guide

DEVIL COOKIE HERE IS FIRE SPIRIT, THERE ISNT A SPRITE YET.

This depends on how strong fire spirit is and how quick he can burst! (Also depends on who he focuses if his ability isn't fully AOE)

For this sake I avoided using shadow milk, to really express the "counter" of this team. If other cookies simply aren't good anymore (ie golden cheese cookie or wind archer.), shadow milk probably will be the replacement(full damage+ ~25-35%dmg resist +dmg rsist bypass on him if this is the case)

WARNING: ALL OF THIS IS OCMPLETELY ASSUMPTION BASED AND GUESSWORK. THIS WAS MADE PRE-FIRE SPIRIT UPDATE AND THIS MAY OR MAY NOT WORK.

COOKIES:

Elder- 1 sec start NEEDED, once achieved aim for max dmg resist (remember to have at least x2 HP substats on beascuit)
-Taunts so that shadow milk focuses him

Burning spice- Attack, Dmg resist topping substats, coolown/crit/atk speed if you can. DMG RESIST BYPASS FOR BEASCUIT!
-Fire spirit said to be stronger/buff fire type cookies!

Golden cheese awakened- Attack, Dmg resist substats, any cooldown if you can. DAMAGE RESIST OR DAMAGE RESIST BYPASS DEPENDING ON WHAT YOU NEED FOR BEASCUIT
-This is a stretch, I'm not even sure she's gonna be meta. In this team she's just kinda used for the big immortality & good damage poke

Fire spirit- Attack, Cooldown, Dmg Resist substats. DMG RESIST BYPASS FOR BEASCUIT
-He's definitely a must have, he's gonna be the big damage dealer

Wind archer- Attack, dmg resist topping substats. DMG RESIST BYPASS/ MAYBE DAMAGE RESIST FOR BEASCUIT (Dmg resist is a guess)
-I'm not sure how useful he's gonna be, but he has insane dps and with golden immortality when she dies, he may be able to quickly do tons of damage before he dies

TREASURES:

Vial-Too good for revive teams. If underleveled, use scroll instead (epic, if also underleveled use rare)

Cooldown- Epic one, if underleveled use the common one. (Any level below level 10 I'd use the common) IF IT TURNS OUT THAT COOLDOWN ISNT THAT IMPACTFUL FOR THIS TEAM, GO FOR WHISTLE/HOLLYBERIAN CROWN/INSIGNIA

Scroll- Guesswork, assuming since this is a one shot team. If already using scroll, use the whistle or a defence treasure like insignia and hollyberian crown.

Treasure prio (if this gets a bit too confusing):
Vial => Scroll => Cooldown(ignore this if team works better without) => Whistle =>Crown/Insignia (ignore if team works better without) => Crit (rare) => Feather => Attack speed treasure

Any treasures not listed I personally woudnt consider using. The list goes from Most recommended to least recommended.


REPLACEMENT COOKIES:
Shadow milk- kinda beats this whole point but he's too strong (REPLACE FOR WIND ARCHER)

ASSUMPTION: Agar agar cookie- Depends if she's strong &her skill is strong (if not strong, ignore. if she is strong, REPLACE WITH WIND ARCHER)

Need to replace ELDER FAIRY? -Crimson coral, fettuccine, whatever you do, make sure they have a 1 second start and are a taunt cookie