While I dont think Vivi is on the level of anything currently on the banlist, it does feel like a card that could be central to a future broken deck, especially if Mox Opal becomes part of the equation again
The effect itself is unparalleled and it is a mass of ads, but Beatrice's name does not have "Malebranche of the Burning Abyss", so it is a little difficult to use with his Malebranche of the Burning Abyss Deck
The fact that Jirina also boosts other humans you control makes her even more loveable
Cards like Corrupted Conviction always have a home, and I could see a couple of copies slotting in here, used to cash in a chump block or removal target or getting even more milage out of Reflection copies
Blue-Eyes Spirit Ultimate Dragon Level 12 LIGHT Dragon / Synchro / Effect 2+ Tuners + 1 non-Tuner "Blue-Eyes" monster You can only use each of the [2] [3] effects of this card once per turn
By shockingly affordable, I mean Im pleasantly surprised at how cheaply you can pick up copies of Boromir now, despite the fact that he easily slots into literally any white deck thats playing even a minimal number of creatures