Green Scarab 
Enchantment — Aura
$0.27 #26042 0.12 31.4 years
Enchant creature
Enchanted creature can't be blocked by green creatures.
Enchanted creature gets +2/+2 as long as an opponent controls a green permanent.
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Cards similar to Green Scarab 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.
Green Ward88%
$0.23↓#250620.0633.2 years↑
"Enchanted creature has protection from green. This effect doesn't remove this Aura."
Wanderbrine Rootcutters88%
$0.07↓#31924↓0.1218.5 years↓
"This creature can't be blocked by green creatures."
White Scarab86%
$0.24↓#251100.0531.4 years
"Enchanted creature can't be blocked by white creatures."
+1 more matching line
Black Scarab84%
$0.25↓#248320.1231.4 years
"Enchanted creature can't be blocked by black creatures."
+1 more matching line
Controlled Instincts83%
$0.08↓#307210.38↑17.7 years↓
"Enchant red or green creature"
+1 more matching line
Blue Scarab82%
$0.24↓#252420.25↑31.4 years
"Enchanted creature can't be blocked by blue creatures."
+2 more matching lines
Red Scarab82%
$0.33↑#265250.27↑31.4 years
"Enchanted creature can't be blocked by red creatures."
+1 more matching line