Shimmering Glasskite 
Creature — Spirit
$0.13 #30917 0.06 21.7 years
Flying
Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability.
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Jetting Glasskite100%
$0.05↓#312180.19↑21.7 years
"Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."
+1 more matching line
Glyph Keeper97%
$0.21↑#20909↑0.19↑9.5 years↓
"Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."
+1 more matching line
Kira, Great Glass-Spinner94%
$4.68↑#5617↑0.75↑21.7 years
"Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability.""
Chancellor of the Annex86%
$3.18↑#10165↑1.43↑15.4 years↓
"Flying"
Disallow80%
$0.37↑#1829↑0.44↑9.7 years↓
"Counter target spell, activated ability, or triggered ability."
Diplomatic Escort78%
$0.12↓#19409↑0.42↑27.0 years↑
", 
, Discard a card: Counter target spell or ability that targets a creature."
, , Discard a card: Counter target spell or ability that targets a creature."
Stifle77%
$10.19↑#4593↑0.71↑23.4 years↑
"Counter target activated or triggered ability."
Voidmage Husher77%
$0.27↑#19845↑0.61↑20.0 years↓
"When this creature enters, counter target activated ability."
Azorius Guildmage77%
$0.21↑#14864↑0.0620.5 years↓
"
: Counter target activated ability."
: Counter target activated ability."
Voidslime76%
$0.30↑#4603↑0.28↑20.5 years↓
"Counter target spell, activated ability, or triggered ability."
Decree of Silence76%
$21.71↑#11742↑1.16↑23.4 years↑
"When you cycle this card, you may counter target spell."
Ice Cave74%
$0.74↑#21369↑0.82↑25.4 years↑
"Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell."
Mistfolk73%
$0.10↓#300260.0031.4 years↑
": Counter target spell that targets this creature."
: Counter target spell that targets this creature."
Repudiate // Replicate72%
$0.31↑#9490↑0.127.7 years↓
"Counter target activated or triggered ability."
Nimble Obstructionist72%
$0.37↑#6386↑0.19↑9.3 years↓
"When you cycle this card, counter target activated or triggered ability you don't control."
Overcharged Amalgam72%
$0.38↑#4938↑0.47↑4.9 years↓
"When this creature exploits a creature, counter target spell, activated ability, or triggered ability."
Rimewind Cryomancer72%
$0.33↑#17153↑0.33↑20.2 years↓
"
, : Counter target activated ability. Activate only if you control four or more snow permanents."
, : Counter target activated ability. Activate only if you control four or more snow permanents."
Planar Chaos72%
$2.33↑#7172↑1.35↑24.4 years↑
"Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell."
Brown Ouphe72%
$0.16↑#251630.25↑31.4 years↑
"
, : Counter target activated ability from an artifact source."
, : Counter target activated ability from an artifact source."
Mossdog70%
$0.11↓#283910.0026.7 years↑
"Whenever this creature becomes the target of a spell or ability an opponent controls, put a +1/+1 counter on this creature."