I've played a couple of games with my friends and we all agree the ghost armour is wayyyy too over powered. Are we getting the rules wrong or did FFG mess it up with that card?

Sounds normal, GA is considered one of the, if not the most, powerful items. Expensive semi-solution, buy more Item and Ally packs to dilute the deck .

That and the other over powered item the "something blade" (can't remember what its called) that ads +3 damage or something(can't remember that either)…