Frenzied Creature
The Wilds of Rhovanion #18 (x2/x1)
Perfidia

When Revealed: Add the top card of the Evil Creatures deck to the staging area and attach Frenzied Creature to it. (Counts as a Condition attachment with the text: "Attached enemy gets +1 Threat +1 Attack +1 Defense and is immune to player card effects")

Shadow: Attach this card to attacking enemy.