Voidmage Apprentice | Magic: The Gathering
Formats Voidmage Apprentice is Legal in
Official Oracle Text for Voidmage Apprentice
When Voidmage Apprentice is turned face up, counter target spell.
Official Rulings for Voidmage Apprentice
4/15/2013 : If a spell with split second is on the stack, you can still respond by turning this creature face up and targeting that spell with the trigger. This is because split second only stops players from casting spells or activating abilities, while turning a creature face up is a special action.