There are 45 Treat Cards you can collect by finding them in chest, defeating enemies, trading with other kids or buying them from Shady.
Once you collect all 45 Treat Cards you will unlock
When in free roam, press
to open your book and go to "Creepy Treats" by pressing
or
Equip 3 cards by pressing
.
In battle use all three cards and after the battle, equip the next 3 cards until you used them all in battle. Once a card is used, the power needs to regenerate for a couple of turns before you can use them again. If you lose the battle or run from it after using the cards, it will still count as you will see that those cards needs to recharge.
Here is the list of cards with their powers:
* Sugar Droppings - Single full heal
* Fudge Crystals - Splash damage on all attacks
* Nubbins - 2x attack damage for next 3 attacks
* Bubble Barf - Chosen Hero ignored by all enemies
* Suck 'ems - Chosen Hero takes 2 turns
* Froot Flakes - Mute a minion's magic attacks
* Ghost Munch - A minion's attacks damage itself
* Goozers - An enemy's attacks heals rather than damage
* Splorts - Amazing attacks are much easier
* Flippity Flaps - Fully heals your heroes after you win
* Frostbites - Max out 1 hero's special meter
* Carameals - Cuts a minion's health in half on each turn
* Snickets - Double candy reward
* Bone-Bones - Stun a minion for 3 turns
* Tin Foil Chews - Heals a hero by 25% for 3 turns
* Jumpin' Beans - Strong Defense against your "weak against" actor type
* Tongue Punchers - Double Experience Reward
* Candy Teeth - Weaken all minion attacks for remainder of fight
* Pumpkin Slough - Undo last turn of damage by enemies
* Toffee Taffy - Cancel all enemy defuffs on players
* Happy Heads - Minion attacks are half as strong for 3 turns
* Rice Creepies - Next minion that attacks a chosen player is automatically defeated
* Schafer's Wafers - 50% max HP heal to all
* Sour Dumps - Max out all 3 heroes' special meters
* Pie Cake - All minions drain 25% health per turn
* Headless Horsemints - Next 3 attacks by any hero are automatically Amazing!
* Mystery Lumps - Next 3 defends are an automatic block
* Delecta-Bulls - Stan all enemies for 1 turn
* Licky Plops - Obliterate 1 minion
* Sugar Uncles - Hero strong against all enemies, All minions weak against hero.
* Dippin'Stix - All heroes contribute to chosen hero's special meter
* Nougat Nuggets - All heroes attack at once
* King Size Fun Size Bar - All minions debuffs boomerang back to themselves
* Peepers - Hero's attack does 3x damage, returns 1x damage to self
* Jelly Beaks - Reset Cooldowns on the other cards in your active deck
* Moldy Mounds - All attacks cause extra fire damage for remainder of the battle
* Garlic Crunch - 2x battle speed
* Fling-a-lings - All heroes are strong against all enemy types
* Smoochies - Max all special meters after win
* Cherry Klots - Auto-resurrect next defeated hero with 50% health for current battle
* Morons - All remaining attacks by hero are Amazing!
* Tongue Ties - Perfect Counter on next 3 defends
* Pampla-Mooses - Grants additional 100 candy after win
* Cthulhu Chew - All heroes are invulnerable for next defensive round
* Peanut Butter Bomb - Obliterate all minions
Thanks to
https://www.trueachievements.com/Cuckoolander.htm for helping completing this list.