Swift Shield

Swift Shield is a homebrew abjuration cantrip that briefly raises a glowing magical barrier against a single attack. It can also be used to intercept a ranged attack aimed at someone else.

• Category: Homebrew spell / abjuration cantrip.

• Level: cantrip
• Casting time: 1 reaction
• Trigger: when the caster is hit with an attack
• Range: self
• Components: S
• Duration: instantaneous
• School: abjuration
• Attack/save: none

A slightly glowing barrier of magical force pops up to obstruct one attack. The caster's armor class for this attack is increased by their proficiency bonus. The effect only lasts for that specific attack.

Interception: if a ranged attack is coming through the caster's space but is aimed at someone else, the caster may intercept it. The caster casts this spell, blocking the attack from hitting the original target, but the caster becomes the target of the attack, whether it succeeds or fails.

• Einar Leafwalker
• Isar Geirson
• Shield of Odin

Homebrew spell. Einar Leafwalker learned Swift Shield from the Elven Guard in Alfheim, and Isar Geirson's backstory also records him learning a quick force shield.

• Confidence: high for spell mechanics, based on user-provided canon note from 2026-06-02.
• Confidence: high that Einar knows Swift Shield, based on his existing backstory.
• Confidence: high that Isar has Swift Shield or an equivalent quick force shield, based on his existing backstory and important powers list.