Hidden Blade

Equipped creature has first strike
As long as equipped creature is an Assassin, it
gains "{t}: Deal damage equal to this creature's
power to a target creature."
Equip {1}
...Amidst all this variety, though, Sally saw to her amusment one particular piece of art and she instantly thought that the reason she was there is to find this tool. An antique bracers of astonishing beauty, hidden blade attached to it.