Underground River [Seventh Edition] Darkness [x2] You must Tribute 3 monsters

You must Tribute 3 monsters to Normal Summon (cannot Set this card)

you can activate this effect to have this card become unaffected by the effects of Spell/Trap Cards until the End Phase

Set: Sun & Moon: Black Star Promos Type: Colorless Rarity: Promo Retreat cost: Colorless

Set: Ancient Sanctuary Card type: Quick Play Spell Rarity: Ultra Rare Select and activate 1 of the following effects: *Change the Battle Position of 1 face-up monster on your opponent's side of the field

Set: HeartGold & SoulSilver: Unleashed Type: Water Rarity: Holo Rare Retreat cost: Colorless

Underground River [Seventh Edition] Darkness [x2] You must Tribute 3 monstersSet: Seventh Edition Type: Land Rarity: Rare {T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you.