
Choose a card type. Target opponent reveals their hand. Blood Oath deals 3 damage to that player for each card of the chosen type revealed this way. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)
Blood Oath has 2 printings, first in Mercadian Masques (1999). EDHREC ranks it #28,329 among Commander cards.
Cards that show up in the same decks on EDHREC.