The team even considered making cards based on specific moves or iconic things that werent characters themselves (for example, something like a Round One or "Perfect" card), but that they instead decided to represent moves as abilities on each creature
And from there, anyone with a TCG they enjoy knows what happens next
In summary, the 20th anniversary was big because of Pokemon Go
Hamza, Guardian of Arashin Selesyna is all about going wide and pumping creatures
Note this works for your foe's stuff too, but no unmorphing there
Finally, 120 damage for 4 Energy is not a particularly good rate, especially with extremely demanding Energy requirements, and the lack of a deck-out rule means Ultra Necrozma is still prone to being punched out by a stronger attacker even if it does get Shoegaze online