The Book of Vashanti

Grants +1 point to cardholder and -1 point to opponent [OR] -1 cup to cardholder and +1 cup
to opponent.
Must played during a game. Card cannot be used
to end the game.
Discard after use.
"The Book of Vishanti? It's not real, it's a fairy tale.
It doesn't exist." - Dr. Strange