Rule evolution

Rule 615.12a

Previously numbered 615.11a.

Earliest archived Rules release: 2009-10-01 · 0 wording revisions · 1 renumbering

  1. Earliest archived Rules release615.11aDetails
    A prevention effect is applied to any particular unpreventable damage event just once. It won't invoke itself repeatedly trying to prevent that damage.
  2. Renumbered615.11a → 615.12aDetails

    Previously
    6. Spells, Abilities, and Effects
    615. Prevention Effects

    Then
    6. Spells, Abilities, and Effects
    615. Prevention Effects

    A prevention effect is applied to any particular unpreventable damage event just once. It won’t invoke itself repeatedly trying to prevent that damage.

Current in the latest available Rules
Unchanged since 2026-08-07.