It is also obvious as all hell
Guaranteed Rarity Distribution: While pack contents are randomized, a full box typically provides a more reliable spread of Rare, Super Rare, and Legendary cards compared to buying 24 loose packs from different sources
This is eased, somewhat, by the presence of the etched foil
Theres also likely to be subthemes of both lifegain and sacrifice, maybe with a small touch of stealing stuff too, as converting things is a big part of being a Vampire
That opening hand ability to sort your first 3 card draws isnt to be sneezed at
If you need a quick way to gain a ton of hand advantage, warping a Starwinder is far from the worst thing you could do - even if you're missing out on the 7/7 beater it provides when you warp it for a single turn