Depending on your goal, the choice is all yours on which Starter Deck to get (or both), precisely the reason I like these Starter Decks for the upcoming Ursula's Return expansion
All of your nonlands are now artifacts in play, and elsewhere as well like you your graveyard, hand, library, Command Zone and exile zone
But having vigilance and trample begs you to build a little monster here with auras and combat tricks, so youll be able to play offense and defense
Not a pure mirror, but one where your decks discard just plays into their plan
Doc Aurlock, Grizzled Genius This Simic card gives you cost reduction on plotting cards and on cards you cast from exile
Crypt Rats Full disclosure: Ive been known to find ways to talk or write about rats in Magic content because I have pet rats and I love them