Myr Prototype 
Artifact Creature — Myr
$0.18 #23445 0.06 23.0 years
At the beginning of your upkeep, put a +1/+1 counter on this creature.
This creature can't attack or block unless you pay
for each +1/+1 counter on it.
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Cards similar to Myr Prototype 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.
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+1 more matching line
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