Seahunter 
Creature — Human Mercenary
$3.62 #11379 0.48 26.6 years
, 
: Search your library for a Merfolk permanent card, put it onto the battlefield, then shuffle.Click a line or tag to filter
Cards similar to Seahunter 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.
Merrow Harbinger80%
$2.86↓#92380.07↓18.9 years↓
"When this creature enters, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top."
Forerunner of the Heralds79%
$0.36↓#94160.37↓8.6 years↓
"When this creature enters, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top."
Moggcatcher74%
$12.55↑#8804↑0.35↓26.6 years
", : Search your library for a Goblin permanent card, put it onto the battlefield, then shuffle."
, : Search your library for a Goblin permanent card, put it onto the battlefield, then shuffle."
Skyshroud Poacher70%
$8.19↑#15952↓0.4826.6 years
", : Search your library for an Elf permanent card, put it onto the battlefield, then shuffle."
, : Search your library for an Elf permanent card, put it onto the battlefield, then shuffle."