Having cards that synergize with the strategy whether your commander is out or not means even the pieces of the combo (Horobi plus anything that targets) can help win you the game if you cant put the other piece(s) together
(9/25/2020) If the spell or ability has damage divided as it was put onto the stack, the division can't be changed, although the targets receiving that damage still can
While all of these cards are epic in one way or another, they walk the line of "tournament staple," which is what Wizards stated Mythics are not intended to be
The more I discuss this issue the more I am realizing quite how close this all is
letting upgrade a creature, draw a card, or even reanimate an artifact from the graveyard
A lot of these unofficial vending stickers were probably distributed widely back then, so they pop up decently often