Qua'um's Gauntlets of Arcane Redirection - a Shadowdark Magic Item

These came to me in a dream.

I need more drugs, or fewer...

Qua'um's Gauntlets of Arcane Redirection

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A pair of mail gauntlets, crafted of mithril and embellished with arcane symbols of star-metal. Wearable by arcane spell-casters. The gauntlets will be found with a severed finger stuck into one of the glove's fingers.

The gauntlets were developed as a defensive item against spells targeted at their wearer. 

On a successful spellcasting roll at same Tier as the cast spell, the targeted spellcaster may “catch” the spell and either redirect it or recraft the arcane energies to a known spell of the same Tier for immediate casting. Re-crafted spells require a second successful spell roll. Spells may only be crafted to Tiers accessible to the caster.

If the wearer fails their defensive spellcasting roll, the spell takes normal effect. Additionally, the wearer (d6):

1. Flees, 1d4 rounds
2. Is paralyzed, 1d4 rounds
3. Loses one random memorized spell for the day
4. Is stunned, disadvantage on action rolls, 1d4 rounds
5. Is blinded, 1d4 rounds
6. Casts their next spell at disadvantage

In the case of a critical failure: The wearer loses a finger. At five critical failures, the gauntlets vanish.

Metal, dude.