Survival Cache 

Sorcery
You gain 2 life. Then if you have more life than an opponent, draw a card.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
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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.
Pursue the Past 100%
$0.22#10925
"You gain 2 life. You may discard a card. If you do, draw two cards."
Thrilling Discovery 100%
$0.38#4048
"You gain 2 life. Then you may discard two cards. If you do, draw three cards."
Essence Pulse 99%
$0.35#13465
"You gain 2 life. Each creature gets -X/-X until end of turn, where X is the amount of life you gained this turn."
The Dragon-Kami Reborn // Dragon-Kami's Egg 98%
$0.25#16222
"You gain 2 life. Look at the top three cards of your library. Exile one of them face down with a hatching counter on it, then put the rest on the bottom of your library in any order."
Pulse of the Fields 95%
$0.59#26452
"You gain 4 life. Then if an opponent has more life than you, return this card to its owner's hand."