Cockadoodledoo (JOTL-EN083) - Judgment of the Light Unlimited

If there are no monsters on the field, you can Special Summon this card (from your hand) as a level 3 monster. If your opponent controls a monster and you control no cards, you can Special Summon this card (from your hand) as a level 4 monster. If this face-up card would leave the field, banish it instead.