Not only is Landfall a fairly popular archetype in general, but tons of other decks use these effects, too
Outlaws of Thunder Junction Key Dates Story Begins : March 18 Debut and Previews Begin : March 26 Card Image Gallery and Previews Complete : April 5 : April 16 MTG Arena Global Release Global Tabletop Release : April 19 Outlaws of Thunder Junction Gameplay Events Prerelease Events : April 1218 Open House : April 1921 Commander Party : April 26 May 2 Store Championship : May 412 Standard Showdown : April 19 July 25 Outlaws of Thunder Junction will be coming over the pass on April 19, so corral your preorders at your local game store, online at Amazon, and elsewhere Magic: The Gathering products are sold.
For example, as the monored Karlach, Fury of Avernus has Choose a Background, you can partner it up with any Background, like Master Chef
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Not only does this Ability instantly double your Energy, but it also works while Serperior is safe on the Bench