Kira, Great Glass-Spinner 
Legendary Creature — Spirit
$4.68 #5617 0.75 21.7 years
Flying
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."
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Jetting Glasskite94%
$0.05↓#31218↓0.19↓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
Shimmering Glasskite94%
$0.13↓#30917↓0.06↓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."
Glyph Keeper91%
$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
Chancellor of the Annex84%
$3.18↓#10165↓1.43↑15.4 years↓
"Flying"
Glorious Protector76%
$0.33↓#63870.42↓5.7 years↓
"Flying"
Disallow74%
$0.37↓#1829↑0.44↓9.7 years↓
"Counter target spell, activated ability, or triggered ability."
Diplomatic Escort74%
$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."
Stifle72%
$10.19↑#45930.7123.4 years↑
"Counter target activated or triggered ability."
Voidslime72%
$0.30↓#46030.28↓20.5 years↓
"Counter target spell, activated ability, or triggered ability."
Azorius Guildmage71%
$0.21↓#14864↓0.06↓20.5 years↓
"
: Counter target activated ability."
: Counter target activated ability."
Unsettled Mariner70%
$3.10↓#3965↑0.63↓7.4 years↓
"Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays ."
."
Ice Cave70%
$0.74↓#21369↓0.8225.4 years↑
"Whenever a player casts a spell, any other player may pay that spell's mana cost. If a player does, counter the spell."