Wall of Caltrops 

Creature — Wall
$0.73 #26463 0.21 32.3 years
Defender (This creature can't attack.)
Whenever this creature blocks a creature, if at least one other Wall creature is blocking that creature and no non-Wall creatures are blocking that creature, this creature gains banding until end of turn. (If any creatures with banding you control are blocking a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by.)
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Cards similar to Wall of Caltrops 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.
Battering Ram74%
$0.10↓#250690.35↑32.5 years
"Whenever this creature becomes blocked by a Wall, destroy that Wall at end of combat."
Wall of Frost72%
$0.19↓#4831↑0.3017.1 years↓
"Whenever this creature blocks a creature, that creature doesn't untap during its controller's next untap step."
+1 more matching line