Two-Headed Dragon

Flying
Menace (This creature can't be blocked except by two or more creatures.)
Two-Headed Dragon can block an additional creature each combat.
{1}{R}: Two-Headed Dragon gets +2/+0 until end of turn.

Magic Online Promos

Archenemy

Flying
{1}{R}: Two-Headed Dragon gets +2/+0 until end of turn.
Two-Headed Dragon can't be blocked except by two or more creatures.
Two-Headed Dragon can block an additional creature.

From the Vault: Dragons

Flying
{1}{R}: Two-Headed Dragon gets +2/+0 until end of turn.
Two-Headed Dragon can't be blocked except by two or more creatures.
Two-Headed Dragon may block an additional creature.

Japan Junior Tournament

Eighth Edition

Flying (This creature can't be blocked except by creatures with flying.)
{1}{R}: Two-Headed Dragon gets +2/+0 until end of turn.
Two-Headed Dragon can't be blocked except by two or more creatures.
Two-Headed Dragon may block an additional creature.