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Maybe something a little more sensible is the typical Craterhoof Behemoth or cards of that ilk

Lulu, Stern Guardian, Rikku, Resourceful Guardian, and Wakka, Devoted Guardian are all Precon cards that are on the lower end of things financially

Stack the triggers so that you sacrifice all of your land to the Worldsire, grab a bunch of lands from your deck and put them onto the battlefield, and then return the sacrificed lands with Lumra

This can effectively shut down a large number of decks in Commander, which can stir up some salt, but we don't have a lot of data on this commander just yet

As far as regular boosters are concerned, there are three types you could be referring to

Grixis flashback has a strong contender here for best Commander for the archetype