Storm of Forms 

Instant
When you cast this spell, copy it for each kind of counter among permanents you control. You may choose new targets for the copies.
Return target nonland permanent to its owner's hand.
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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.
Ancestral Communion 87%
$0.45#19493
"When you cast this spell while you control your commander, copy this spell. You may choose a new target for the copy."
+1 more matching line
Ripples of Potential 85%
$2.77#972
"Proliferate, then choose any number of permanents you control that had a counter put on them this way. Those permanents phase out."
Second Harvest 83%
$3.51#570
"For each token you control, create a token that's a copy of that permanent."
Fear of Sleep Paralysis 82%
$0.45#3472
"Stun counters can't be removed from permanents your opponents control."
Hatut Zeraze Strike Force 82%
$0.74#21321
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game."
Genesis Storm 82%
$0.68#13220
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game."
Skull Storm 82%
$0.87#12613
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game."
Empyrial Storm 82%
$0.41#18267
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game."
Echo Storm 82%
$0.30#11252
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies."
Fury Storm 82%
$4.47#7420
"When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies."
Pir, Imaginative Rascal 81%
$4.60#5694
"If one or more counters would be put on a permanent your team controls, that many plus one of each of those kinds of counters are put on that permanent instead."
Winding Constrictor 81%
$0.49#2047
"If one or more counters would be put on an artifact or creature you control, that many plus one of each of those kinds of counters are put on that permanent instead."
Mentor's Guidance 80%
$0.15#16233
"When you cast this spell, copy it if you control a planeswalker, Cleric, Druid, Shaman, Warlock, or Wizard."
Wonder Man, Hollywood Hero 80%
$0.15#21592
"Each power-up ability of permanents you control can be activated an additional time."
Lumbering Megasloth 80%
$0.32#11486
"This spell costs {1} less to cast for each counter among players and permanents."
Doc Samson, Super Psychiatrist 80%
$0.27#14867
"If you would put one or more counters on a permanent you control, put that many plus one of each of those kinds of counters on that permanent instead."