From Scrolls Wiki
Ability: When Countdown is 0, you may reset its Countdown and increase Countdown of target creature you control by 2 to draw 1 scroll.
Flavor text: Learning takes time.
Mystic Altar is included twice in the Envoy of the Empire preconstructed deck.
- Feb. 25th, 2014: Mystic Altar's Countdown is now increased by base value instead of 2 when using its ability
- Sep. 17th, 2013: Added to the test server.