[quote=@Scio]
[@Crimmy] The range limit is settled, but could you give me examples of commands he could accomplish and specific/more complex ones that would require more thought?
[/quote]

"Materialise a coffee cup, made out of glazed ceramic, that can contain 250mL worth of liquid."

"Increase leg strength by a multiplier of 1.5x."

"Give me a pair of wooden chopsticks."

"Set temperature of the water present within this kettle to 100 degrees Celsius."

And then he has the keyword thing (two of them), which he can assign certain commands to, but he has to prepare them beforehand and if he wants to change them up he'll have to go through describing all the commands once again to them. Sort of like hotkeys.

Like:

"Increase strength output of muscles by a multiplier of 5x. Increase durability of knuckles on my right fist by 10x. Manifest low-intensity gold light upon an impact between the knuckles and any object. Keyword: Big Bang Punch."