Lava Runner 
Creature — Lizard
$0.49 #27389 0.40 26.9 years
Haste
Whenever this creature becomes the target of a spell or ability, that spell or ability's controller sacrifices a land of their choice.
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Cards similar to Lava Runner 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.
Thresher Beast82%
$0.15↓#264290.3826.3 years
"Whenever this creature becomes blocked, defending player sacrifices a land of their choice."
Yawning Fissure79%
$0.02↓#290700.73↑17.1 years↓
"Each opponent sacrifices a land of their choice."
Destructive Urge79%
$0.54↑#17661↑1.03↑27.9 years
"Whenever enchanted creature deals combat damage to a player, that player sacrifices a land of their choice."
Goblin Ruinblaster79%
$0.17↓#19103↑0.28↓16.9 years↓
"Haste"
Maelstrom Artisan // Rocket Volley78%
$0.18↓#19062↑0.00↓0.4 years↓
"Haste"
Tectonic Hellion77%
$0.19↓#20998↑0.00↓7.0 years↓
"Whenever this creature attacks, each player who controls the most lands sacrifices two lands of their choice."
+1 more matching line
Burning Sands76%
$2.40↑#18596↑1.66↑24.9 years↓
"Whenever a creature dies, that creature's controller sacrifices a land of their choice."
The Howling Abomination76%
$0.32↓#14785↑0.20↓4.5 years↓
"Haste"
Thraximundar76%
$0.79↑#8992↑0.84↑17.3 years↓
"Haste"
Dictate of Erebos75%
$15.42↑#1014↑1.88↑12.3 years↓
"Flash"
Retromancer74%
$0.15↓#309920.00↓27.9 years
"Whenever this creature becomes the target of a spell or ability, this creature deals 3 damage to that spell or ability's controller."
Kamahl, Pit Fighter74%
$0.18↓#18157↑0.5024.9 years↓
"Haste"
Earthlink74%
$0.91↑#295500.86↑31.3 years↑
"Whenever a creature dies, that creature's controller sacrifices a land of their choice."
Stoneshaker Shaman72%
$0.66↑#10747↑1.00↑20.9 years↓
"At the beginning of each player's end step, that player sacrifices an untapped land of their choice."
Cunning Sparkmage72%
$0.35↓#10756↑0.27↓16.6 years↓
"Haste"
Vulshok Sorcerer72%
$0.16↓#12960↑0.17↓22.3 years↓
"Haste"
Structural Collapse72%
$0.05↓#286280.27↓13.6 years↓
"Target player sacrifices an artifact and a land of their choice. this card deals 2 damage to that player."
Tainted Aether71%
$8.29↑#12995↑1.62↑27.9 years
"Whenever a creature enters, its controller sacrifices a creature or land of their choice."
Mana Vortex70%
$14.43↑#20380↑1.58↑32.1 years↑
"At the beginning of each player's upkeep, that player sacrifices a land of their choice."
Demonic Hordes70%
$6.93↑#251210.4433.1 years↑
"At the beginning of your upkeep, unless you pay 
, tap this creature and sacrifice a land of an opponent's choice."
, tap this creature and sacrifice a land of an opponent's choice."