Flipping a coin

Flipping a coin is method of randomization of effects with two possible outcomes of equal likelihood.

The coin flip was introduced as a mechanic in Arabian Nights with Mijae Djinn, Ydwen Efreet and Bottle of Suleiman. Coin flips are mainly used on red cards and artifacts. If the card is multicolored, it's always red/blue. There is one black card with the mechanic (Tavern Swindler) and one green Un-card (Flock of Rabid Sheep).