Necrovalley [DR1-EN032] Super Rare Fusion/Tuner Monster then you can add 1

then you can add 1 "Ruin

but it cannot declare an attack

You can only use this effect of "Yosenju Oyam" once per turn

Set: Star Pack VRAINS Card type: Effect Monster Rarity: Starfoil Rare Attack: 1800 Defense: 0 You can banish this card and 1 face-up Machine monster you control

Set: Hidden Summoners Card type: Effect Monster Rarity: Super Rare Attack: 1500 Defense: 500 If this card is sent to the GY as material for the Fusion or Link Summon of a "Prank-Kids" monster: You can inflict 500 damage to your opponent

Necrovalley [DR1-EN032] Super Rare Fusion/Tuner Monster then you can add 1Set: Dark Revelation Volume 1 Card type: Field Spell Rarity: Super Rare As long as this card remains on the field, negate the effects of Spell, Trap, and Monster Cards that affect a card(s) in the Graveyards, and neither player can remove cards in the Graveyards from play. Also, as long as this card remains on the field, increase the ATK and DEF of all monsters that includes "Gravekeeper's" in their card name by 500 points.