Still, better commanders are to be had at the front of a deck, but this could be included in any numbers of those decks that use landfall or care about lands
You just need to adapt the strategy to the format
(The Ascension is a pigeon because the more players we have, the quicker it makes counters and can become active.) Verdant Force makes more 1/1 tokens, Insurrection steals more creatures temporarily, and Blatant Thievery nets you more things permanently
That is a pretty expensive, but the mythic rarity combined with the potential implications on Pioneer are definitely going to put this card in high demand until players figure out how real its threat is
And Arcane Proxy as a non-staple piece (Not yet, anyway)
Xanathar, Guild Kingpin Oh boy, whats not to love about this Dimir 5/6 Beholder