Sword of Truth and Justice is a mythic Artifact — Equipment card from Secret Lair Drop (SLD), collector number 1096. Current market price: $34.41 (foil $37.92), TCGplayer market prices via Scryfall.
Equipped creature gets +2/+2 and has protection from white and from blue. Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on a creature you control, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) Equip {2}