Foster 


Enchantment
$0.27 #21458 0.35 26.9 years
Whenever a creature you control dies, you may pay
. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest into your graveyard.
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Cards similar to Foster 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.
Hermit Druid88%
$8.55↑#2276↑0.78↑28.5 years↑
"
,
: Reveal cards from the top of your library until you reveal a basic land card. Put that card into your hand and all other cards revealed this way into your graveyard."
Spinner of Souls88%
$0.51↑#3904↑0.21↓1.8 years↓
"Whenever another nontoken creature you control dies, you may reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order."
Gamekeeper83%
$0.18↓#13834↑0.4427.2 years
"When this creature dies, you may exile it. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and put all other cards revealed this way into your graveyard."
Mirror-Mad Phantasm80%
$0.73↑#14492↑0.2914.9 years↓
"
: This creature's owner shuffles it into their library. If that player does, they reveal cards from the top of that library until a card named this card is revealed. The player puts that card onto the battlefield and all other cards revealed this way into their graveyard."
Avenging Druid78%
$0.13↓#217390.2528.2 years↑
"Whenever this creature deals damage to an opponent, you may reveal cards from the top of your library until you reveal a land card. If you do, put that card onto the battlefield and put all other cards revealed this way into your graveyard."
Curse of Unbinding76%
$1.16↑#7165↑0.59↑4.9 years↓
"At the beginning of enchanted player's upkeep, that player reveals cards from the top of their library until they reveal a creature card. Put that card onto the battlefield under your control. That player puts the rest of the revealed cards into their graveyard."
Ripples of Undeath74%
$7.27↑#533↑0.342.2 years↓
"At the beginning of your first main phase, mill three cards. Then you may pay
and 3 life. If you do, put a card from among those cards into your hand."
Wood Sage73%
$0.17↓#221230.07↓28.9 years↑
"
: Choose a creature card name. Reveal the top four cards of your library and put all of them with that name into your hand. Put the rest into your graveyard."
Marchesa, Dealer of Death72%
$0.25↓#11430↑0.19↓2.4 years↓
"Whenever you commit a crime, you may pay
. If you do, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard."
Heirloom Blade72%
$0.24↓#3824↑0.08↓9.0 years↓
"Whenever equipped creature dies, you may reveal cards from the top of your library until you reveal a creature card that shares a creature type with it. Put that card into your hand and the rest on the bottom of your library in a random order."
Bloodline Shaman72%
$0.28↑#202810.2523.9 years↓
"
: Choose a creature type. Reveal the top card of your library. If that card is a creature card of the chosen type, put it into your hand. Otherwise, put it into your graveyard."
Treasure Hunt72%
$0.35↑#16146↑0.06↓16.6 years↓
"Reveal cards from the top of your library until you reveal a nonland card, then put all cards revealed this way into your hand."
Oath of Druids70%
$2.42↑#13734↑0.4428.2 years↑
"At the beginning of each player's upkeep, that player chooses target player who controls more creatures than they do and is their opponent. The first player may reveal cards from the top of their library until they reveal a creature card. If the first player does, that player puts that card onto the battlefield and all other cards revealed this way into their graveyard."
Thran Tome70%
$0.71↑#27660↓0.3129.2 years↑
"
,
: Reveal the top three cards of your library. Target opponent chooses one of those cards. Put that card into your graveyard, then draw two cards."