With a set covering a wide range of horror tropes, Delirium seems like a great mechanic to bring back to not only fit some of the horror themes, but to provide a fun, grindy mechanic to this set
By incorporating owyn into your plans, you fortify your position on the board, seizing opportunities to propel yourself toward victory
(If this creature isnt monstrous, put X +1/+1 counters on it and it becomes monstrous.) When this creature becomes monstrous, goad up to X target creatures your opponents control
If they have a glass cannon style combo Commander, Shay says no thanks and makes the coast clear to kill anything
Its design was actually finished in 2014, but the schedule couldnt allow for its release until three years later
The people who played Magic back then remember this format as one of the most damaging to the game