Underground River [Seventh Edition] Darkness [x2] The effect(s) of that Synchro

The effect(s) of that Synchro Monster is negated

This card cannot be destroyed as a result of battle

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

Set: Limited Edition Beta Type: Artifact Rarity: Rare Cost: {4} All Swamps are 1/1 black creatures that are still lands

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

Underground River [Seventh Edition] Darkness [x2] The effect(s) of that SynchroSet: Seventh Edition Type: Land Rarity: Rare {T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you.