Wizards of Thay reduces the cost of your instants and sorceries, and myriad allows you to get even bigger discounts because it also allows you to cast your sorcery spells as though they had flash, which is huge for spell slinging decks of all types
When you play this card, each opponent loses 1 lore, and you have the option to draw a card for each 1 lore lost in this way
The only doubts I have on this card are that it doesn't synergize at all with FlickerFlicker, which isn't mandatory but it'd still be a pretty good point in its favor, and, most importantly, that it seems weird to place in a deck's curve
While perhaps not as badass as the original, it's a real glow-up from the arch-vamp's most recent appearance as a 'charmed groom' in Crimson Vow (although, seriously, how many cups of blood does one man need?)