The Tale of the Twelve Sacred Knights (ABC-SD02-054 MR) [ABC Duel Decks]

[Mythic] This card has all magic stone types. When this card is discarded >>> If you control a light Twelve Sacred Knights J/ruler, put this card from your graveyard into the field rested. [Rest]: Produce one will of any attribute. Spend this will only to play Twelve Sacred Knights spells. You may return this card to its owner's hand. At the beginning of each player's main phase >>> The turn player chooses another player. If the turn player has less life than the chosen player, the turn player gains 400 life.