2 Fiend monsters.
Once per turn during your Standby Phase, pay 500 LP or destroy this card. Once per Chain, if you pay LP (except during the Damage Step): You can send 1 Fiend monster from your Deck to the GY with ATK, or DEF equal to the amount paid. Once per Chain, if a Fiend monster is sent to your GY (except during the Damage Step). You can roll a six-sided die. Then apply this effect on 1 of those monsters based on the result.
* 1: Add it to your hand. * 2,3,4,5: Shuffle into the Deck. * 6: Special Summon it.