You can only activate this effect "SCP - 079 "Old AI"" once per turn
They must usually be Set on the field, and may be activated at any time after the turn they were, including during an opponent's turn
Duoterion was first released in the set Legendary Duelists, illustrated by Konami
![yugioh mecha phantom beast deck Token may be 1st or Unlimited Edition Yu-Gi-Oh! Phantom Beast Deck] Mecha](https://static.wikia.nocookie.net/yugioh/images/b/bb/MechaPhantomBeastMegaraptor-MP14-EN-SR-1E.png/revision/latest?cb=20140904211647)
Play Magazine praised the game as a "beautifully produced, rule heavy, text heavy, story heavy, lore heavy, chess-like card battle royale," while GameNOW stated that "As you get deeper into the game, the attack/defence system starts to make sense, and the whole play experience becomes very tense and strategic." [19] [12] GamePro had a mixed reaction to the gameplay, but ultimately said that it was "best appreciated by newcomers to the Yu-Gi-Oh game who want to learn how to play." [15] Conversely, G4TV thought the game was "really freaking hard," while PGNx Media called it a "run-of-the-mill game." [12] GameSpot compared the game negatively to the original trading card methods, saying "The presentation is terribly stripped-down, and as an odd duck sort of hybrid strategy game, it doesn't offer much accessibility or depth." [3] Electronic Gaming Monthly called the game "surprisingly addictive" but found it to be a difficult experience to play
![yugioh mecha phantom beast deck Token may be 1st or Unlimited Edition Yu-Gi-Oh! Phantom Beast Deck] Mecha](https://tools.toywiz.com/_images/_webp/_products/me/ltgyen022.webp)
Under the right circumstances, Artifact Scythe has the potential to prevent an opponent from playing Yu-Gi-Oh