Showdown in the Badlands Cards List & Guide
This thread was marked as Locked by Fluxflashor.
So this was revealed on a Chinese website.
Apparently it reads:
Rogue Epic Spell, 2 mana
Secret: After your hero is attacked, gain Stealth until your next turn.
Not sure what happens then, do you still take the damage and then you cannot be attacked by additional enemies? Is the attack cancelled somehow?