We know he has history as a Harper
Despite being significantly worse than the original Demonic Tutor, its still more than good enough to see play in both Commander and Legacy
I suppose a future metagame could develop where this card ends up seeing play in a deck like that, but control brews arent going to like how conditional this is and the aggro/midrange decks are skewing red
Dread Summons Rarity: Rare TYPE: Sorcery SUBTYPE: - CMC: 2 Mana cost: USD: $0.22 EUR: 0.21 TIX: 0.02 EDHREC RANK: 3657 Each player mills X cards
If you build it, build it to the nines, with the intent of being archenemy, because you almost always will be
With Commander games going longer its not a bad fit at all, but lets take a look at the best cards with the keyword itself, and the cards that can help you get the most out of it