The back half of this battle, Zilortha, Apex of Ikoria, makes itself and the creature you tutored for (and all of your other non-humans!) effectively unblockable
Once we adjust for the number of cards in a set, the price becomes roughly $50 total
Kheru Mind-Eater is a two-generic, one-black creature with menace, that exiles cards from an opponents hand whenever it deals combat damage to the player
the three cards you discard from the top of your deck may be Darkness energy, which you can then retrieve with Dark Patch (it may be worth adding an extra Darkness energy or Dark Patch in your list for this alone)
Neo Revelation Expanded Hologram area #1-14/64 On certain Neo Revelation cards, the hologram is revealed in areas of the character image which were not intended, such as through the eyes of some Pokemon and in a larger proportion of the background image
This card cannot declare an attack the turn it is Special Summoned." That would make it competitive, though not broken, and it would up the consistency and speed of the archetype as a whole