Spellseeker 

Creature — Human Wizard
When this creature enters, you may search your library for an instant or sorcery card with mana value 2 or less, reveal it, put it into your hand, then shuffle.
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Cards that do something similar 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.
Micromancer 90%
$0.20#9901
"When this creature enters, you may search your library for an instant or sorcery card with mana value 1, reveal it, put it into your hand, then shuffle."
Daring Waverider 88%
$0.22#8434
"When this creature enters, you may cast target instant or sorcery card with mana value 4 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead."
Goblin Dark-Dwellers 88%
$0.31#9138
"When this creature enters, you may cast target instant or sorcery card with mana value 3 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead."
Sea Gate Stormcaller 86%
$0.35#18451
"When this creature enters, copy the next instant or sorcery spell with mana value 2 or less you cast this turn when you cast it. If this creature was kicked, copy that spell twice instead. You may choose new targets for the copies."
Frostpyre Arcanist 85%
$0.13#28977
"When this creature enters, search your library for an instant or sorcery card with the same name as a card in your graveyard, reveal it, put it into your hand, then shuffle."
Starfield Shepherd 84%
$0.30#4719
"When this creature enters, search your library for a basic Plains card or a creature card with mana value 1 or less, reveal it, put it into your hand, then shuffle."
Trinket Mage 84%
$0.42#2003
"When this creature enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle."
Ranger-Captain of Eos 83%
$37.76#779
"When this creature enters, you may search your library for a creature card with mana value 1 or less, reveal it, put it into your hand, then shuffle."
Delivery Moogle 83%
$0.21#7621
"When this creature enters, search your library and/or graveyard for an artifact card with mana value 2 or less, reveal it, and put it into your hand. If you search your library this way, shuffle."
Roving Actuator 81%
$0.09#22804
"When this creature enters, if a nonland permanent left the battlefield this turn or a spell was warped this turn, exile up to one target instant or sorcery card with mana value 2 or less from your graveyard. Copy it. You may cast the copy without paying its mana cost."