When you attack wth Massacre, if you have discarded a card with 6 or more [Power] this turn, Massacre gains +2 [Power] and intimidate.
If Massacre is discarded to pay the cost of a Brute attack action card, the attack gains intimidate.
NM-Mint Unlimited Normal - $3.40
Lightly Played Unlimited Normal - $3.10
Moderately Played Unlimited Normal - $2.70
Heavily Played Unlimited Normal - $2.40
Damaged Unlimited Normal - $1.70