bgg arkham horror the card game Horror: Arkham Horror: The Card Game

Competitors typically like to bling out their decks with meta-relevant Trainer cards like this one, so its value is largely linked to its playability

Mendicant Core, Guidelight

RELIABLE 40-MICRON THICKNESS: Designed with 40-micron soft polypropylene, these card sleeves offer a balance of flexibility and durability, helping prevent scratches, bending, and general wear during repeated gameplay and heavy shuffling without making your deck feel stiff or oversized

While it's a Fusion Monster by card type, its effect equips itself to a Monster as soon as you summon it, effectively making it an Equip Spell card that you need to fuse to use

It forced you to attack carefully and not commit to a field of attack position monsters or risk losing them to a set Mirror Force