Flying Whenever Catacomb Dragon becomes blocked by a nonartifact, non-Dragon creature, that creature gets -X/-0 until end of turn, where X is half the creature's power, rounded down.
Near Mint - $800
Lightly Played - $600
Moderately Played - $600
Heavily Played - $500
Damaged - $400
Near Mint Spanish - $800
Lightly Played Spanish - $600
Moderately Played Spanish - $600
Heavily Played Spanish - $500
Damaged Spanish - $400