Arcane Safeguards

The magic powering you makes it hard for outside
magic to affect you.
You gain the Resist Magic {t} reaction.
Enhancement: Gain temporary HP equal to the
spell level of the triggering effect.

Resist Magic {t}:
Trigger: Attempting a saving throw against a
harmful magical effect.
Effect: +1 circumstance bonus to the save;
if arcane success becomes a critical success.