Vexing Sphinx CSP/50

Set: Coldsnap
Collector Code: CSP/50
Name: Vexing Sphinx
Type: Creature — Sphinx
Oracle text: Flying Cumulative upkeep—Discard a card. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When this creature dies, draw a card for each age counter on it.
Rarity: Rare