Similarly to sd-dynamic-prompts, it should be possible to write syntax that allows <random:...> and <wildcard:...> to randomly pick more than one value from their respective lists.

Perhaps something like <random(2):cat,dog,fish> and <wildcard(2):animals> to pick two items at random, but not the same item twice.

Additionally, a range like <wildcard(1-3):animals> should be defined to randomly pick one to three values from the list.

For a more concrete example:
Prompt: <wildcard(2-4):scene_natural>, <wildcard:season>, <wildcard:time>
Output: forest, river, heavy clouds, autumn, evening

(The three forest, river, heavy clouds having been picked from scene_natural)

This feature would be useful for easily creating more diverse batches.