Eh, spellweaving/working isn't something Sepcarim are supposed to be able to attempt even. At best nothing would happen since, using Billie as an example, she can only draw on the Xi component required. At worst, a Monk attempting to force a spell and reaching for the Sakra and Karma component would die horribly. 

As for what a Monk would be capable of, it would probably be very power oriented. Probably use Xi in a manner similar to Chi/Ki and would be some of the most physically robust individuals. More capable Monks might be able to harness Xi into blasts/projectiles, but that would depend if there are other methods of materializing Xi other than using Sakra as a sort of blueprint.

@TheHangedMan I just noticed that there's apparently a difference between Magic and Spellwork/weaving.
[quote=Magic - Maians] Each energy has a specific use, and spontaneous use of it without purpose is known as magic. Magistraava are humans that can access and mold these energies for a specific use. This is commonly known as spellwork or spellcasting.[/quote]
Is it just me/the wording, or is there actually a difference between what Magistraavii do and magic?