Psychic Purge | Magic: The Gathering
Formats Psychic Purge is Legal in
Official Oracle Text for Psychic Purge
When a spell or ability an opponent controls causes you to discard Psychic Purge, that player loses 5 life.
Official Rulings for Psychic Purge
10/4/2004 : Discarding as a cost to cast a spell will not trigger the ability. Only discarding as an effect will trigger the ability.