Normally, for Orion, using his elements like this would hold no problem thanks to his bloodlines and blood force but unfortunately, he barely had access to the two.
What he was doing right now was the method he'd told Vulkron about during the Dream plane trials. Using his pure mental power as fuel to cast 'spells' and cause thaumaturgic events.
Again, normally, this would've been something as easy as breathing for someone with a mind as powerful as Orion's, especially considering he'd lived three previous lives where his sole purpose of existence was to gain a powerful mind, though he was unware of it at the time.
The problem here was simple.
Currently, Orion had to individually control and surveil each and every single one of his bloodlines while internally chanting the mantra of chaos so his cultivation didn't simply dissipate.