Morphtronic", hay là " Deformer" ( Ｄ ( ディフォーマー ) Difōmā) trong phiên bản Nhật, là một archetype các quái thú ra mắt trong được dùng bởi Yu-Gi-Oh! 5D's Rua và được giới thiệu trong .
Crossroads of Chaos
They are depicted in how they "morph" when they change their
Battle Position, which changes their effect(s) and appearance (humanoid form in Attack Position; item form in Defense Position). They transform into small "electronic" household items, like magnets and mobile phones. Despite their appearances, "Morphtronics" are not all Machine- Type monsters and they also represent a wide array of Attributes.
Due to these monster's effects depending on what Battle Position they are in, cards like "
Final Attack Orders" and " Level Limit - Area A" will destroy their play style. Also, since almost every "Morphtronic" monster is Level of 3 or lower, cards like " Infinite Dismissal", " Nanobreaker" and " Possessed Dark Soul" would help prevent the opponent from swarming you with them. " Deck Devastation Virus", " Power Filter" and " King Tiger Wanghu" will completely cripple you due to the fact that all "Morphtronic" monsters have less than 1500 ATK. " Skill Drain" and " Mind Drain" also threatens heavily against their monster effect reliance, as does " Effect Veiler".
Since nearly all "Morphtronic" monsters are
Machine- Type monsters, " System Down" is an extremely dangerous card for this Deck. Furthermore it would also render cards like " Junk Box" and " Machine Assembly Line" useless. As most commonly used "Morphtronic" monsters are Machine-Type monsters, " Chimeratech Fortress Dragon" can severely cripple a good field of "Morphtronic" monsters. " Power Tool Dragon" and " Morphtronic Forcefield" cannot prevent this because they are all being used as Fusion Material Monsters.
There are also a lot of
Equip Spell Cards in this series and the "Morphtronics" will often rely on them for big plays. This can be hampered with cards like " Dark Highlander", " Eternal Rest", " Really Eternal Rest", " The Emperor's Holiday", " Armored Glass", " Armor Break", " Disarmament" and " Collected Power".