Stealthy Swashbuckler

{u/b}, Return target unblocked creature to your
hand: Put Stealthy Swashbuckler onto the battlefield from your hand tapped and attacking.
Whenever Stealthy Swashbuckler deals combat damage to a player, you may gain control of target artifact defending player controls.
Don't mind the knife in my hand, I'll just be taking this and be on my way.