Esper Charm | Magic: The Gathering
Formats Esper Charm is Legal in
Official Oracle Text for Esper Charm
Official Rulings for Esper Charm
10/1/2008 : While the spell is on the stack, treat it as though its only text is the chosen mode. The other two modes are treated as though they don't exist. You don't choose targets for those modes.
10/1/2008 : If this spell is copied, the copy will have the same mode as the original.