Pointed Discussion

Rated it up because it is a fun card to play casual.

Other white cards that encourage your opponent(s) to spend mana: Glittering Lion, Glittering Lynx, Mercenaries, Wishmonger, Rhystic Circle, Rhystic Shield, Clergy of the Holy Nimbus, and Knight of the Holy Nimbus.

It would be interesting in a large multiplayer game, just because of what it could do to combat. No one likes to spend mana on a spell that helps your opponent as much as it helps you, and I can't think of a deck that needs damage prevention so badly that it would go about it this way.

Good thing this is symmetrical, phew. 5 mana to prevent 1 damage to yourself would break the game open otherwise.