Anti-Magic Mask

The Mask of Magic Resistance (aka Anti-Demon Mask) is a mask owned by Chloe O’Bell. It was given to Shizue Izawa to suppress Ifrit, who resided inside her. It was later passed down to Rimuru Tempest. From there, the mask would later ironically be given to a young Chloe by Rimuru.

While the real mask is currently in the possession of Chloe, Rimuru is able to duplicate a working copy of the mask complete with its ability for his own usage.

Ability
The mask is a magic item infused with four effects:
 * Magic Resist - dulls any magic attacks that the enemies cast and hide the user's internal magical force.
 * Antidote - nullifies poison that made contact with the user.
 * Breathing Support - allows the user to keep their lungs full even if the flames consumed the oxygen around the user.
 * Amplify Senses - increases the user's senses.

In Episode 24, during his battle against Shizue, Diablo suspected that the mask has the ability to suppress time, this ability is known as Infinity.