Shrine of Piercing Vision 
Artifact
At the beginning of your upkeep and whenever you cast a blue spell, put a charge counter on this artifact.
{T}, Sacrifice this artifact: Look at the top X cards of your library, where X is the number of charge counters on this artifact. Put one of those cards into your hand and the rest on the bottom of your library in any order.
click a line to search just that ability, click more to combine them
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.
Shrine of Limitless Power 97%
$0.14#26505
"At the beginning of your upkeep and whenever you cast a black spell, put a charge counter on this artifact."
+1 more matching line
Shrine of Burning Rage 95%
$0.18#20348
"At the beginning of your upkeep and whenever you cast a red spell, put a charge counter on this artifact."
+1 more matching line
Shrine of Boundless Growth 94%
$0.20#24430
"At the beginning of your upkeep and whenever you cast a green spell, put a charge counter on this artifact."
+1 more matching line
Aether Vial 93%
$3.48#5863
"At the beginning of your upkeep, you may put a charge counter on this artifact."
Golden Urn 93%
$0.24#18932
"At the beginning of your upkeep, you may put a charge counter on this artifact."
+1 more matching line
Darksteel Reactor 93%
$0.31#3837
"At the beginning of your upkeep, you may put a charge counter on this artifact."
+1 more matching line