The 10-19 is also great for card advantage
This card is always treated as a "Utopic Future" card .) You can also Xyz Summon this card by using "Number F0: Utopic Future" you control as material
Therefore, in full power, Rillabloom VMAX is able to deal a humongous 280 damage
For example, Crawdaunts Smash Turn says, You may switch Crawdaunt with 1 of your Benched Pokmon. Read the name as this Pokmon if the attack somehow gets used by another Pokmon
As a third point of reference, here are all the Pioneer-legal cards printed each year (the blue bars), and the Pioneer-legal original cards (the red bars) released since 2013: Again, a similar trend: a slight increase in non-reprint cards, and a large increase in the number of reprints
You can choose any value for X