Sword of War and Peace is a mythic Artifact — Equipment card from Secret Lair Drop (SLD), collector number 2793. Current market price: $19.84 (foil $16.86), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+2 and has protection from red and from white. Whenever equipped creature deals combat damage to a player, this Equipment deals damage to that player equal to the number of cards in their hand and you gain 1 life for each card in your hand. Equip {2}