Frosty shackles

Description

Grants the chosen opponent a spell that deprives him of the ability to summon any creatures into battle, as well as transform into Nephilim. The same spell is given to who applied the shackles.
You can use no more than once per battle, and also if the victim, along with the character using the artifact, has not yet called any living creature into battle and has never turned into Nephilim.

It can only be purchased during the New Year's Sale.