Translation via MTG Goldfish
Concealed Weapon - 1R
Artifact - Equipment (Uncommon)
Equipped creature gets +3/+0.
Disguise 2 (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 Concealed Weapon is turned face up, attach it to target creature you control.
Equip 1
Isn’t it 3 to cast face down, 2 to flip, then 2 to equip? Asuming you aren’t just casting and equiping for 4
From the card text:
And it is (3) to cast it face down, (2)R to turn it face up (6 mana).