Ghirapur Aether Grid 

Enchantment
Tap two untapped artifacts you control: This enchantment deals 1 damage to any target.
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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.
Shao Jun 100%
$0.20#7696
"Tap two untapped artifacts you control: this card deals 1 damage to each opponent."
Whirler Rogue 99%
$0.25#2178
"Tap two untapped artifacts you control: Target creature can't be blocked this turn."
Meria, Scholar of Antiquity 92%
$0.35#10240
"Tap two untapped nontoken artifacts you control: Exile the top card of your library. You may play it this turn."
Spring-Loaded Sawblades // Bladewheel Chariot 89%
$0.21#13858
"Tap two other untapped artifacts you control: This Vehicle becomes an artifact creature until end of turn."