Blood Oath 
Instant
$1.27 #27922 0.22 26.9 years
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.)
Click a line or tag to filter
Cards similar to Blood Oath expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Fertile Imagination89%
$0.36↓#20452↑0.06↓21.0 years↓
"Choose a card type. Target opponent reveals their hand. Create two 1/1 green Saproling creature tokens for each card of the chosen type revealed this way."
Thought Hemorrhage84%
$0.29↓#313230.2917.3 years↓
"Choose a nonland card name. Target player reveals their hand. this card deals 3 damage to that player for each card with the chosen name revealed this way. Search that player's graveyard, hand, and library for all cards with that name and exile them. Then that player shuffles."
Brain Pry78%
$0.19↓#273200.39↑20.3 years↓
"Choose a nonland card name. Target player reveals their hand. That player discards a card with that name. If they can't, you draw a card."
Inquisition74%
$0.22↓#312260.00↓32.1 years↑
"Target player reveals their hand. this card deals damage to that player equal to the number of white cards in their hand."
Persecute74%
$0.41↓#236011.13↑27.9 years
"Choose a color. Target player reveals their hand and discards all cards of that color."
Addle74%
$0.27↓#233950.2725.9 years
"Choose a color. Target player reveals their hand and you choose a card of that color from it. That player discards that card."
Cabal Therapy72%
$5.70↑#15343↑0.48↑24.3 years↓
"Choose a nonland card name. Target player reveals their hand and discards all cards with that name."
Void72%
$0.18↓#234340.60↑25.9 years
"Choose a number. Destroy all artifacts and creatures with mana value equal to that number. Then target player reveals their hand and discards all nonland cards with mana value equal to the number."
Mindblaze71%
$0.29↓#261560.2721.9 years↓
"Choose a nonland card name and a number greater than 0. Target player reveals their library. If that library contains exactly the chosen number of cards with the chosen name, this card deals 8 damage to that player. Then that player shuffles."
Darigaaz, the Igniter70%
$0.50↓#22062↑0.2425.9 years
"Whenever this card deals combat damage to a player, you may pay 
. If you do, choose a color, then that player reveals their hand and this card deals damage to the player equal to the number of cards of that color revealed this way."
. If you do, choose a color, then that player reveals their hand and this card deals damage to the player equal to the number of cards of that color revealed this way."