Youll notice the only two creatures in the deck are Xenagos, God of Revels and Worldspine Wurm, which together produce a 30-point attack with trample
When a creature has attacked, it remains tapped until the untap step of your next turn
That said Blackmail is much more playable than it is generally given credit for and is a fun and skill intensive card to play with too
The Zombie will turn the cards drawn into life loss, which might get Bane to a place to get indestructible, so if you are at 23 or fewer life with a few sacrificial options, don't forget to sacrifice them to that Viscera Seer or Carrion Feeder and then draw a few cards and lose some life in response to a sweeping removal spell that might otherwise kill Bane
Skull of Orm into repeated Worms is also a sight to behold
The longstanding strategy has been to vastly overpower Jund, which is why Tron has always been a good deck