Vivi Ornitier Rating: 7/10 Despite being blue, Vivi Ornitier is like the black mage of your dreams for the black/red deck
However, its nice and simple once you know what youre looking for specifically
Main Phases: Cast creatures, sorceries, artifacts, enchantments, and planeswalkers
Its ultimate gives you an emblem which has you return artifacts from graveyard to the battlefield on the end step
Xiao did say that opening packs are gambling-like psychologically and structurally, providing a peer-reviewed study co-authored by himself that linked card packs to problem gambling (although, less impactful than loot boxes), he does note that We have not done much if any proper academic research yet. Whatnot and similar services are a relatively new concept, one that hasnt had the research put into it
Let us know in the comments, or over in the Draftsim Discord