Players who control three or more artifacts, legendaries, and/or Sagas, an enduring story remains for the rest of the game
You can play undercosted effects while benefiting a player who is behind
Its also a really quick clock, smashing for six or 8 depending on the cantrips in your hand when you attack
This creates a value loop where you get your ETB triggers twice, once for the original and once for the token, all for a massive discount in mana
the cards in your hand, a path to victory.
+2/+1 is a pretty big buff in a deck that likes to go wide with Zombie tokens, so this slots right into EDH typal decks led by Wilhelt, the Rotcleaver, The Scarab God, and Varina, Lich Queen, among others