Trail of Evidence {2}{U}
Enchantment
Whenever you cast an instant or sorcery spell, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
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Cards that do something similar expected a card that isn't here?
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Archmage Emeritus 86%
$0.51#258
"Whenever you cast or copy an instant or sorcery spell, draw a card."
Niv-Mizzet, Parun 85%
$5.89#742
"Whenever a player casts an instant or sorcery spell, you draw a card."
Overmaster 85%
$2.99#3095
"The next instant or sorcery spell you cast this turn can't be countered."
Academy Wall 84%
$0.27#13132
"Whenever you cast an instant or sorcery spell, you may draw a card. If you do, discard a card. This ability triggers only once each turn."
Johann, Apprentice Sorcerer 84%
$0.23#12245
"Once each turn, you may cast an instant or sorcery spell from the top of your library."
Fandaniel, Telophoroi Ascian 84%
$0.32#3498
"Whenever you cast an instant or sorcery spell, surveil 1."
Lier, Disciple of the Drowned 83%
$0.43#2209
"Each instant and sorcery card in your graveyard has flashback. The flashback cost is equal to that card's mana cost."
Suffocation 83%
$0.15#31137
"Cast this spell only if you were dealt damage this turn by a red instant or sorcery spell."
Taigam, Ojutai Master 83%
$1.00#9267
"Whenever you cast an instant or sorcery spell from your hand, if this card attacked this turn, that spell gains rebound."
Thousand-Year Storm 83%
$1.37#1394
"Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. You may choose new targets for the copies."
Sorcerer Class 82%
$2.98#3636
"Whenever you cast an instant or sorcery spell, that spell deals damage to each opponent equal to the number of instant and sorcery spells you've cast this turn."
Pyromancer Ascension 82%
$0.28#11771
"Whenever you cast an instant or sorcery spell that has the same name as a card in your graveyard, you may put a quest counter on this enchantment."
Kess, Dissident Mage 81%
$4.32#3076
"Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead."
Mizzix of the Izmagnus 81%
$0.80#6271
"Whenever you cast an instant or sorcery spell with mana value greater than the number of experience counters you have, you get an experience counter."
Niv-Mizzet, Supreme 81%
$0.36#13141
"Each instant and sorcery card in your graveyard that's exactly two colors has jump-start."
Vadrik, Astral Archmage 81%
$0.34#11429
"Instant and sorcery spells you cast cost {X} less to cast, where X is this card's power."
Katilda and Lier 81%
$0.39#16866
"Whenever you cast a Human spell, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
Djinn Illuminatus 81%
$0.32#17031
"Each instant and sorcery spell you cast has replicate. The replicate cost is equal to its mana cost."