[quote=@Fabulous Knight]
[@Muttonhawk]Stuff like the above examples -- cause will lead to effect like anything else, it'll just be magical/fantastical in nature.
[/quote]

Just remember, even if you create stuff magically, the way they are going to be perceived in the mortal realm is going to be very different and over a different timeframe.
If, for instance, Jvan DOES vommit water, it might be perceived as a hail of water from space, or strange atmospheric conditions leading to a ten thousand year period of constant rain or whatever.
The gods themselves may not stick by the laws set out in the blueprint, but when manifesting into reality, their actions will find a way to happen while obeying the laws set out. So, if you create a completely new species out of nothing, the laws would make it so that it evolved from something else etc.

As magic is part of the blueprint, obviously it means that fantastical things can happen too.