That costs five, has echo 5, flies and has protection from Black
Demonic Counsel Demonic Counsel is Demonic Tutor if you have delirium enabled, or a good creature tutor in a demon deck, or a Kaalia of the Vast EDH deck
Since theres a heavy sacrifice theme in the deck too, there are plenty of ways to capitalize on them, like Bastion of Remembrance to drain your opponents of life and Pitiless Plunderer to ramp you up in mana
A non-foil Japanese Mystical Archive card replaces a Mystical Archive card in 1 out of 3 Japanese Play Boosters
Its safe to assume that characters can still be challenged, banished or otherwise impacted by opposing cards
The Verdict I called 2/4 of these cards, though neither Corrupted Conviction nor Traumatic Revelation have been terrible