A foil copy of a heavily played competitive card can be worth several times the standard version
Whenever Ursula, Deceiver of All is used to sing a song - Lorcanas action cards that can be played for free by exerting a character equal to or greater than the songs ink cost - the song can be played again from the players discard pile for free, then returned to the bottom of their deck
We saw a lot of power, with double Student of Warfare / Time of Heroes nut draws and one-creature wins thanks to the fact that if we can fight through our opponent's removal and max level a creature, most of our level-up creatures can win the game by itself, but we also got Time Walked a lot of times and occasionally just played underpowered creatures (a good example of this was against Merfolk, where their creatures were often bigger and more powerful, even without the extra work of spending mana to level up)
And lets also hope that Wizards can keep up the quality that weve gotten in precons with these last two sets
You don't need to have a commander that makes opponents discard cards to get value out of Waste Not and realizing that simple premise made this decklist really come together in my mind