Hailon, the Timelord (BLRR-EN022) - Battles of Legend: Relentless Revenge 1st Edition

Cannot be Special Summoned from the Deck. If you control no monsters, you can Normal Summon this card without Tributing. Cannot be destroyed by battle or card effects. You take no battle damage from attacks involving this card. At the end of the Battle Phase, if this card battled: Activate this effect; if your current LP is lower than your opponent’s LP, inflict the difference as Effect damage to your opponent. Once per turn, during your Standby Phase: Shuffle this card into the Deck.