Legolas's Quick Reflexes 
Instant
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Untap target creature. Until end of turn, it gains hexproof, reach, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target 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.
Seize the Day 95%
$2.60#1673
"Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase."
Djeru's Resolve 94%
$0.20#13716
"Untap target creature. Prevent all damage that would be dealt to it this turn."
Prepare // Fight 89%
$0.17#21555
"Untap target creature. It gets +2/+2 and gains lifelink until end of turn."
Spidery Grasp 88%
$0.35#22158
"Untap target creature. It gets +2/+4 and gains reach until end of turn."
Steady Aim 88%
$0.09#21838
"Untap target creature. It gets +1/+4 and gains reach until end of turn."
Foxfire 82%
$0.19#25289
"Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn."
Flash Conscription 81%
$0.23#29184
"Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. If {W} was spent to cast this spell, the creature gains "Whenever this creature deals combat damage, you gain that much life" until end of turn."
Threaten 80%
$0.28#15597
"Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn."