If the Historic meta is filled with aggressive creature decks and Mono-Red Aggro (which seems possible), then cutting some of the slower one-ofs to make room for Wildgrowth Walker in the main deck is probably the way to go
Body Double [Wizard deck]: Always a lot of fun, especially if you shape-shift something strong that one of your opponents has in their graveyard
Although Wrenn and Realmbreaker have helpful loyalty abilities, it has yet to impact constructed formats
Ornithopter While there are a few places where Ornithopter could show up in Historic, ranging from meme-worthy (trying to play Turn 1 Sephara, Sky's Blade with the help of the quad-Ornithopter opening hand) to potentially competitive (some sort of flying tribal deck with Empyrean Eagle), the most obvious hope for Ornithopter is the Historic version of Affinity
X can also use any Move from its prior Arceus form that you have under it
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