For those not aware, this is a format where you team up with a friend against another pair of players
It also creates a Treasure token that can be tapped and sacrificed for mana, whenever you play or cast a card from exile
MUR uses a different visual treatment textured holographic foil across the full card with explicit Mega branding and pulls significantly rarer than SAR (closer to 1 per booster box for the headline Mega chase)
Bill turns Food into a temporary Assault Formation for a single creature, which is most likely going to be himself because hes such a good, sweet boy, but when he bucks, it hits hardest
Is a 40 HP Pikachu that your opponents Bulbasaur could sneeze on and knock out truly one of the five best cards ever printed
For example, if you control Ygra and there is an effect that says artifacts enter tapped, creatures will enter tapped