I'm Ben Smith, a senior engineer on MTG Arena 's Features team
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As such, if you have Castle Locthwain in your collection, you should play it, but if you don't, I'd make this the lowest-priority card in the deck to spend your wildcards on (although it is worth adding to your collection if you are interested in Explorer or Historic because a lot of decks play it)
We get Invocation of the Founders, an enchantment which will copy every instant or sorcery spell we cast from our hand (and choose new targets for the copy, per usual)
This was the beginning of tokens playing a much larger role in the structural design of sets
Adrix and Nev is a great commander for a token doubling deck, giving you consistent access to a doubler