There's a 3-hour gap between the final sign-up time and the end of the event on June 22 at 8:00 am PST
But you cant copy your opponents stuff, which limits its potential
Is this set good

Being a -1 here doesnt allow to hold forever, which is the one difference between 0s and 1s), one 1/1 with more flexibility (Kasmina, Enigma Sage) 4-mana: +: One 1/1 (Elspeth, Knight-Errant, Saheeli, the Gifted ) with lifelink (Sorin, Lord of Innistrad, Archangel Elspeth) or other minor upside (Nahiri, Heir of the Ancients, Jaya, Fiery Negotiator, Commodore Guff ), 1/3 chance at two 1/1s with haste (Comet, Stellar Pup) 0: One 2/2 (Arlinn Kord, Gideon, Ally of Zendikar, Garruk Relentless) with haste (Xenagos, the Reveler), one 1/1 with major upside (Zariel, Archduke of Avernus) -1: One 3/3 (Garruk Wildspeaker, Lukka, Bound to Ruin (Compleated)), one 2/2 with upsides (The Wandering Emperor) 5-mana: +2: Two 0/1s (Tevesh Szat, Doom of Fools) +1: One 2/3 with minor upside (Ashiok, Nightmare Muse), one 1/1 with major upside ( Freyalise, Llanowars Fury , Tezzeret, Artifice Master, Nahiri the Lithomancer ), one 3/3 (Garruk, Primal Hunter, Vivien, Monsters Advocate, Nissa Who Shakes the World, Jared Carthalion ), one 2/2 (Liliana, Deaths Majesty), one BIG creature of variable size (Nissa, Ascended Animist, when compleated twice

Luxray GL LV.X also has no Retreat Cost, meaning players could use its Pok-Power and immediately retreat into a more offensive Pokmon, such as Garchomp C LV.X, which is also featured in the Celebrations Classic Collection