Cheapest priced copy (Universes Within): $0.59 at Card Kingdom, near mint, their price list as of .
Cecily, Haunted Mage 
Legendary Creature — Human Wizard · 3/5 · Rare · Secret Lair Drop · #343
Your maximum hand size is eleven.
Whenever Cecily, Haunted Mage attacks, you draw a card and you lose 1 life. Then if you have eleven or more cards in your hand, you may cast an instant or sorcery spell from your hand without paying its mana cost.
Partner—Friends forever (You can have two commanders if both have this ability.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.59 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secret Lair Drop | 343 | Rare | $13.99 | $17.99 |
| Universes Within | 3 | Rare | $0.59 | — |