- Opposition Agent
- Sudden Substitution
- Selective Memory
- Exile all nonland cards from target opponent's library, with the ability for you to play them from exile
- Opposition Agent
- Skyship Weatherlight
- Fractured Identity
- Exile all artifact and creature cards in opponents' libraries; you may play those cards
- Wheel of Sun and Moon
- Displacer Kitten
- Micromancer
- Opposition Agent
- Dark Ritual
- Scheming Symmetry
- Exile each opponent's library
- Infinite black mana
- Infinite ETB
- Infinite LTB
- Infinite magecraft triggers
- Infinite storm count
- Opposition Agent
- Hive Mind
- Mana Severance
- Mind Grind
- Mill an opponent library
- Sphinx's Tutelage
- Opposition Agent
- Mana Severance
- Hive Mind
- Painter's Servant
- Infinite mill for target opponent every time you draw a card
- Opposition Agent
- Hive Mind
- Mana Severance
- Selective Memory
- Cast any number of spells from opponents' libraries
- Exile all nonland cards from opponents' libraries
- Exile each opponent's library
- Umbris, Fear Manifest
- Opposition Agent
- Hive Mind
- Mana Severance
- Blade of Selves
- Exile each opponent's library
- Near-infinitely large Umbris
- Umbris, Fear Manifest
- Opposition Agent
- Hive Mind
- Mana Severance
- Chainer, Dementia Master
- Exile each opponent's library
- Near-infinitely large Umbris
- Umbris, Fear Manifest
- Opposition Agent
- Hive Mind
- Mana Severance
- Deadeye Navigator
- Exile each opponent's library
- Near-infinitely large Umbris
- Opposition Agent
- Hive Mind
- Doomsday
- Exile each opponent's library
- Near-infinite lifeloss
- Opposition Agent
- Hive Mind
- Selective Memory
- Cast any number of spells from opponents' libraries
- Exile all nonland cards from opponents' libraries
- Maralen of the Mornsong
- Opposition Agent
- Players cannot draw cards
- Tutor for any card in an opponent's library during their draw step with the ability to play that card
Sets containing Opposition Agent
Opposition Agent appears in 3 different sets:
