These decks were designed around the time of Pro Tour Guilds of Ravnica , so we wouldn't know exactly how Ravnica Allegiance would shake up the format
Ill also suggest some card-by-card swaps that can be made to polish this gem, all aimed at a low-budget investment
Basically, cards you can get as promos will also be available in main sets
You managed not to be Slain by their Stronghold but can't really be happy about the six extra cards they drew, many of which were de facto Demonic Tutors
If I had, I think I would have anticipated even more of a downside than simply losing life equal to each spells mana value, since giving yourself an effective discount of all generic mana cost in every spell is such an outrageous upside
Being able to draw a card every time you cast or copy an instant or sorcery is an easy way to get card advantage