Mana Screw

Artifact, 1 (1)
{1}: Flip a coin. If you win the flip, add {2} to your mana pool. Play this ability only any time you could play an instant.
There was no darker or more evil creation in all the multiverse than that of the mana screw.
Illus. Mike Raabe

Format Legality	Banned in Vintage, Legacy, Extended, Standard, MTGO Classic
Printings (2/3)	Unhinged (Uncommon) Unhinged Alternate Foils (Uncommon)