Sustaining Spirit {1}{W}
Creature — Angel Spirit
Cumulative upkeep {1}{W} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Damage that would reduce your life total to less than 1 reduces it to 1 instead.
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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.
Ali from Cairo 100%
#25316
"Damage that would reduce your life total to less than 1 reduces it to 1 instead."
Fortune Thief 100%
$0.39#13005
"Damage that would reduce your life total to less than 1 reduces it to 1 instead."
Elderscale Wurm 83%
$2.90#12232
"As long as you have 7 or more life, damage that would reduce your life total to less than 7 reduces it to 7 instead."