Charizard cards generally have a 'discarding energy' problem, and this one is worse than most - discarding all five of the energy required to power its ultimate the moment you use it
If you love having options and aren't scared of a complicated deck, then Jump Scare is an extremely solid precon choice
I wonder about something like Godsend, where its super good at killing anything that it damages, reflecting it's combat supremacy from LOB era, but it's not like Blue-Eyes does anything special with dead creatures, so I don't love it
If you can get Entomb, some Animates, some monsters, and some tutors, sure, itll be pretty strong, but thats a tall order these days
In seventh-generation set GX Ultra Shiny [SM8b], the Dragon/Ground-type Legendary is shown at its full power