Concealed Weapon 

Artifact — Equipment
Equipped creature gets +3/+0.
Disguise {2}{R} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.)
When this Equipment is turned face up, attach it to target creature you control.
Equip {1}{R}
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Cards that do something similar expected a card that isn't here?
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Fugitive Codebreaker 94%
$0.28#18402
"Disguise {5}{R}. This cost is reduced by {1} for each instant and sorcery card in your graveyard."