|Big Roid City|
|Card type||Spell Card|
LoreAs long as this card is face-up on the field, both players can Summon Machine-Type “roid” monsters from their Extra Deck to their Main Monster Zone. All “roid” monsters in the Hand, on the Field, or in the Graveyard whose original type is Machine-Type are always also treated as Machine-Type. Once per turn, if a player controls no monsters: That player can target 1 Machine-Type “roid” monster in their Hand; Special Summon the targeted monster.