Its ward ability is surprisingly annoying, especially in formats like Modern and Legacy where decks run few lands because so many of their cards are hyper-efficient
If a permanent enters the battlefield under an opponent's control with hexproof, indestructible, protection, shroud, and/or ward after Shay Cormac's first ability resolves, it won't lose that ability until you activate Shay Cormac's first ability again
This works remarkably well with other cards associated with the Lost Zone
The most relevant side of this is as a way of exiling opposing creatures while being a better aggressive threat than both Brutal Cathar and Skyclave Apparition
Each turn, youll get a new 3/3 wraith token, giving you a lot of resources, and it feels like youre really summoning the Nazgl to your side