Grave Ohja [TLM-EN017] Ultimate Rare Synchro/Tuner/Effect Monster if it battles an opponent's

if it battles an opponent's monster: You can roll a six-sided die

You can pay 1000 LP

the ATK of that monster you control becomes double its current ATK

You can only use this effect of "Satellarknight Unukalhai" once per turn

Grave Ohja [TLM-EN017] Ultimate Rare Synchro/Tuner/Effect Monster if it battles an opponent'sSet: The Lost Millennium Card type: Effect Monster Rarity: Ultimate Rare Attack: 1600 Defense: 1500 As long as a face down Defense Position monster(s) remains on your side of the field, a player cannot select this card as an attack target. Each time a monster on your side of the field is Flip Summoned, inflict 300 points of damage to your opponent's Life Points.