Tablet of Discovery 
Artifact
$1.08 #3443 0.32 0.5 years
When this artifact enters, mill a card. You may play that card this turn. (To mill a card, put the top card of your library into your graveyard.)
: Add .: Add . Spend this mana only to cast instant and sorcery spells.Click a line or tag to filter
Cards similar to Tablet of Discovery 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.
Jaya Ballard86%
$0.38↓#9334↓0.11↓8.5 years↑
"+1: Add . Spend this mana only to cast instant or sorcery spells."
. Spend this mana only to cast instant or sorcery spells."
Vodalian Arcanist86%
$0.07↓#17635↓0.00↓8.5 years↑
": Add 
. Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Hydro-Channeler83%
$0.23↓#12689↓0.03↓0.5 years
": Add 
. Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Abstract Paintmage83%
$0.22↓#9379↓0.07↓0.5 years
"At the beginning of your first main phase, add . Spend this mana only to cast instant and sorcery spells."
. Spend this mana only to cast instant and sorcery spells."
Ore-Rich Stalactite // Cosmium Catalyst82%
$0.34↓#14070↓0.00↓2.9 years↑
": Add . Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Cormela, Glamour Thief81%
$0.21↓#6410↓0.21↓4.5 years↑
"
, : Add 
. Spend this mana only to cast instant and/or sorcery spells."
, : Add . Spend this mana only to cast instant and/or sorcery spells."
Pelargir Survivor81%
$0.19↓#15260↓0.17↓3.3 years↑
": Add one mana of any color. Spend this mana only to cast an instant or sorcery spell."
: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell."
Volshe Tideturner80%
$0.24↓#14905↓0.00↓4.1 years↑
": Add . Spend this mana only to cast an instant or sorcery spell or a kicked spell."
: Add . Spend this mana only to cast an instant or sorcery spell or a kicked spell."
Unblinking Observer78%
$0.16↓#18891↓0.05↓5.1 years↑
": Add . Spend this mana only to pay a disturb cost or cast an instant or sorcery spell."
: Add . Spend this mana only to pay a disturb cost or cast an instant or sorcery spell."
Karfell Harbinger78%
$0.16↓#15518↓0.07↓5.7 years↑
": Add . Spend this mana only to foretell a card from your hand or cast an instant or sorcery spell."
: Add . Spend this mana only to foretell a card from your hand or cast an instant or sorcery spell."
Curious Homunculus // Voracious Reader77%
$0.32↓#9577↓0.12↓10.2 years↑
": Add . Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Rakdos Locket77%
$0.21↓#8566↓0.00↓7.7 years↑
": Add or ."
: Add or ."
Rakdos Cluestone77%
$0.19↓#10793↓0.00↓13.5 years↑
": Add or ."
: Add or ."
Thought Vessel76%
$2.40↑#21↑0.00↓10.9 years↑
": Add ."
: Add ."
Mishra's Workshop75%
$3699.99↑#36781.60↑32.6 years↑
": Add . Spend this mana only to cast artifact spells."
: Add . Spend this mana only to cast artifact spells."
Obsidian Obelisk75%
$0.60↓#10595↓0.00↓4.1 years↑
": Add ."
: Add ."
Life of Toshiro Umezawa // Memory of Toshiro74%
$0.24↓#17628↓0.00↓4.7 years↑
", Pay 1 life: Add . Spend this mana only to cast an instant or sorcery spell."
, Pay 1 life: Add . Spend this mana only to cast an instant or sorcery spell."
Somberwald Sage74%
$0.49↓#2577↑0.19↓14.5 years↑
": Add three mana of any one color. Spend this mana only to cast creature spells."
: Add three mana of any one color. Spend this mana only to cast creature spells."
Omen Hawker73%
$0.38↓#4999↓0.06↓3.5 years↑
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Page, Loose Leaf73%
$0.22↓#15203↓0.08↓0.5 years
": Add ."
: Add ."