Half-orc of Isengard
The Road to Isengard Nightmare #3 (x3)
Gegner
(33) 3 3 2 4
Ork.   Isengart.  

Forced: When Half-orc of Isengard attacks, either discard 1 random card from your hand, or Half-orc of Isengard gets +3Attack for this attack.

Shadow: If this attack destroys a character, discard 1 random card from your hand.