This gives you the chance to play two cards for one, which is incredible early in the game
Epic-rarity cards consist of cards from across other rarities, printed specially with glossy rainbow foiling to mark them as Epiceven though the featured art is the same as the non-Epic version of each card
Matoya, Archon Elder is a sweet draw engine, and I can see her fitting into Kenessos sea creatures, Tales of Middle-earth blue-green decks like Elrond and Galadriel, and shell also just generally be a good engine piece in graveyard strategies that surveil a lot, like Mirko, Obsessive Theorist
Common keywords are: [20] Bodyguard: Your opponent must choose a card with Bodyguard during a challenge if theyre able to
It would be powerful enough just to cheat free creatures into play, but putting them in tapped and attacking makes this a lethal commander that overwhelms the table with just a few combat steps