Hidden Blade 
Artifact — Equipment
$0.28 #6043 0.05 2.2 years
Flash
When this Equipment enters, attach it to target creature you control. If that creature is an Assassin, it gains deathtouch until end of turn.
Equipped creature gets +1/+0 and has first strike.
Equip 
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Cards similar to Hidden Blade expected a card that isn't here?
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Javelin of Lightning90%
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"During your turn, equipped creature gets +2/+0 and has first strike."
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Maul of the Skyclaves88%
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"Equipped creature gets +2/+2 and has flying and first strike."
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"Equipped creature gets +1/+1."
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"Equipped creature gets +1/+0."
+1 more matching line
Hidden Footblade84%
$0.27↓#11288↓0.152.2 years
"When this Equipment enters, attach it to target creature you control. That creature gains first strike until end of turn."
+1 more matching line
Dueling Rapier84%
$0.24↓#12959↓0.125.1 years↑
"Equipped creature gets +2/+0."
+2 more matching lines
Mirran Banesplitter84%
$0.21↓#12866↓0.33↑3.4 years↑
"Equipped creature gets +2/+0."
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Paladin's Shield84%
$0.20↓#20216↓0.36↑5.1 years↑
"Equipped creature gets +0/+2."
+2 more matching lines
Sparring Collar82%
$0.18↓#25157↓0.25↑22.3 years↑
"Equipped creature has first strike."
+1 more matching line
Quick-Draw Katana82%
$0.16↓#8432↓0.081.8 years
"During your turn, equipped creature gets +2/+0 and has first strike."
+1 more matching line