Collector's Case 
Artifact
$0.16 #27215 0.00 0.2 years
When this artifact enters, tap up to one target creature and put two stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
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Cards similar to Collector's Case expected a card that isn't here?
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Utrom Scientists96%
$0.13↓#221620.000.5 years
"When this creature enters, tap up to one target creature and put a stun counter on it."
Rowdy Snowballers96%
$0.17↑#13993↑0.000.8 years
"When this creature enters, tap target creature an opponent controls and put a stun counter on it."
Shipwreck Patrol96%
$0.17↑#302330.000.2 years
"When this creature enters, tap target creature an opponent controls and put a stun counter on it."
Alchemax Slayer-Bots96%
$0.22↑#18129↑0.17↑0.9 years
"When this creature enters, tap target creature an opponent controls and put a stun counter on it."
Fractal Mascot96%
$0.13↓#225950.000.4 years
"When this creature enters, tap target creature an opponent controls. Put a stun counter on it."
Fear of Immobility96%
$0.11↓#17042↑0.18↑1.9 years↑
"When this creature enters, tap up to one target creature. If an opponent controls that creature, put a stun counter on it."
Gilded Scuttler94%
$0.26↑#14055↑0.15↑1.8 years↑
"When this creature enters, tap target creature an opponent controls and put a stun counter on it."
Donatello, Rad Scientist94%
$0.38↑#18960↑0.000.5 years
"When this card enters, tap up to three target creatures your opponents control. Put a stun counter on each of them."
Dreamdew Entrancer93%
$0.32↑#6904↑0.47↑2.1 years↑
"When this creature enters, tap up to one target creature and put three stun counters on it. If you control that creature, draw two cards."
Chillbringer93%
$0.05↓#260130.067.6 years↑
"When this creature enters, tap target creature an opponent controls. It doesn't untap during its controller's next untap step."
Stitched Mangler93%
$0.11↓#21062↑0.18↑10.4 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Kor Hookmaster93%
$0.05↓#256060.13↑16.9 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Frost Trickster93%
$0.10↓#17571↑0.11↑5.4 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Watertrap Weaver93%
$0.06↓#222060.53↑8.9 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Spire Patrol93%
$0.21↑#283150.18↑9.6 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Frost Lynx93%
$0.04↓#19763↑0.41↑12.1 years↑
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Constrictor Sage92%
$0.15↓#21475↑0.22↑1.4 years↑
"When this creature enters, tap target creature an opponent controls and put a stun counter on it."
+1 more matching line
Solitary Sanctuary92%
$0.25↑#8424↑0.28↑3.0 years↑
"When this enchantment enters, tap target creature an opponent controls and put a stun counter on it."
Tranquilize92%
$0.17↑#13061↑0.57↑2.2 years↑
"Tap target creature an opponent controls and put three stun counters on it."
Procrastinate92%
$0.20↑#13400↑0.000.4 years
"Tap target creature. Put twice X stun counters on it."