While it provides protection from monster effects in response to Normal Trap activations and offers a disruptive effect by potentially destroying a card in the opponent's hand or field, there may be more versatile or impactful cards available depending on the specific strategy of the deck
I know this comment is 3+ years old now, but the description in the 1.2 version makes me think the Gengar thing IS intentional -- but yeah, it could be more clear
Note, this is a deck whose combos were augmented by multiple of the quirky Obelisk Force decklists posted in other articles on this site, so be sure to check them out for some fun deck ideas of your own: CLICK and CLICK
But let's not get too far ahead
8 Mordor On The March Never Ending Legions Win-more cards are always fun in Commander, and Mordor on the March can certainly give you overwhelming odds on the battlefield
Bastiodon can be very annoying, but his heaviest attack is just 80 damage, meaning that you will want to find something else to finish your opponent off