Rogue Elephant {G}
Creature — Elephant
When this creature enters, sacrifice it unless you sacrifice a Forest.
click a line to search just that ability, click more to combine them
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.
Plant Elemental 100%
$0.22#31085
"When this creature enters, sacrifice it unless you sacrifice a Forest."
Primeval Force 96%
$0.22#29845
"When this creature enters, sacrifice it unless you sacrifice three Forests."
War Elemental 86%
$4.58#12993
"When this creature enters, sacrifice it unless an opponent was dealt damage this turn."
Balduvian Horde 86%
$0.05#28476
"When this creature enters, sacrifice it unless you discard a card at random."
Minotaur Explorer 86%
$0.27#29926
"When this creature enters, sacrifice it unless you discard a card at random."
Pillaging Horde 86%
#30546
"When this creature enters, sacrifice it unless you discard a card at random."
Phyrexian Dreadnought 84%
$277.53#9664
"When this creature enters, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater."
Wormfang Drake 83%
$0.13#23070
"When this creature enters, sacrifice it unless you exile a creature you control other than this creature."
Drekavac 83%
$0.09#30606
"When this creature enters, sacrifice it unless you discard a noncreature card."
Plaxmanta 81%
$0.26#18158
"When this creature enters, sacrifice it unless {G} was spent to cast it."
Drake Familiar 81%
$0.08#27434
"When this creature enters, sacrifice it unless you return an enchantment to its owner's hand."