Left Arm of the Forbidden One [LOB-123] Ultra Rare Dragons of Legend If that card is in

If that card is in your opponent's hand

you can discard 1 Zombie-Type monster to the Graveyard to select 1 Zombie-Type monster in your Graveyard with a Level less than the discarded Zombie-Type monster's

Unleash a new "Forbidden" Quick-Play Spell that can negate the effects of and halve the ATK of an entire field's worth of monsters or a Normal Spell that lets you retaliate against your opponent's disruptive monster effects by choosing from the effects of Pot of Greed

"Black Magic Ritual"

you can Special Summon 1 EARTH monster with an ATK of 1500 or less in face-up Attack Position from your Deck

Left Arm of the Forbidden One [LOB-123] Ultra Rare Dragons of Legend If that card is inSet: The Legend of Blue Eyes White Dragon Card type: Normal Monster Rarity: Ultra Rare Attack: 200 Defense: 300 A forbidden left arm sealed by magic. Whosoever breaks this seal will know infinite power.