Phyrexian mana

Phyrexian mana symbols were introduced in New Phyrexia as a novel mechanic. It reappeared in Unstable and Commander 2019.

Description
The Phyrexian mana symbols are represented by the Greek letter "phi" (ϕ) on colored backgrounds, and denote a cost that may be paid with either 2 life or mana of the color of the background color of the symbol. The generic symbol is used in rules text for any of the five Phyrexian mana symbols.

Magic Head Designer Mark Rosewater noted that Phyrexian mana is similar to normal mana costs but affords additional flexibility to players, allowing them to reduce costs as well as to play with effects from other colors of the Color Pie.

Rules
undefined undefined undefined undefined

Trivia

 * Phyrexian mana was featured as rules card 1 of 4 in the New Phyrexia set.
 * Spike, Tournament Grinder is the only silver-bordered card utilizing Phyrexian mana.