Unexpected Potential [Conspiracy English]

Хочешь продать нам такую карту?
qty in hand

10
edition

Conspiracy (12)
language
Foil

no
card text

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly name a card. You may turn this conspiracy face up any time and reveal the chosen name.)

You may spend mana as though it were mana of any color to cast spells with the chosen name.