Meltstrider's Resolve 
Enchantment — Aura
Enchant creature you control
When this Aura enters, enchanted creature fights up to one target creature an opponent controls. (Each deals damage equal to its power to the other.)
Enchanted creature gets +0/+2 and can't be blocked by more than one creature.
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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.
Pitiless Fists 100%
$0.15#19014
"When this Aura enters, enchanted creature fights up to one target creature an opponent controls."
Warbriar Blessing 88%
$0.17#14140
"When this Aura enters, enchanted creature fights up to one target creature you don't control."
+1 more matching line
Aether Tunnel 84%
$0.70#4313
"Enchanted creature gets +1/+0 and can't be blocked."
+1 more matching line