While Wizards owns a lot of the IP on Magic cards (the art, mana symbols, etc.) there is t nothing illegal about a piece of cardboard the same size of a Magic card with some unique custom art that might look a bit like a Mox, an Underground Sea, or a Wheel of Fortune
Thankfully, since both cards can easily fit into the 99 of a Commander deck, we dont have to get into that argument today
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Sure enough, it's a bird (and a very powerful one)
Abrade did big things in constructed yet is perhaps even better suited to cube
With the exception of basic lands (Plains, Island, Swamp, Mountain, Forest, and Wastes), your combined deck and sideboard may not contain more than four of any individual card, counted by its English card title equivalent