Advanced format ruling
Goddess of Whim
Card effect (current official text)Once per turn: You can toss a coin and call Heads or Tails. If you call it right, double this card's ATK during this turn. If you call it wrong, halve its ATK during this turn.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.