Corroding Dragonstorm {1}{B}
Enchantment
When this enchantment enters, each opponent loses 2 life and you gain 2 life. Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
When a Dragon you control enters, return this enchantment to its owner's hand.
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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.
Roiling Dragonstorm 100%
$0.29#5680
"When a Dragon you control enters, return this enchantment to its owner's hand."
+1 more matching line
Breaching Dragonstorm 100%
$0.19#4119
"When a Dragon you control enters, return this enchantment to its owner's hand."
Teeming Dragonstorm 100%
$0.15#16886
"When a Dragon you control enters, return this enchantment to its owner's hand."
Encroaching Dragonstorm 100%
$0.28#2553
"When a Dragon you control enters, return this enchantment to its owner's hand."