Microtransactions I'd love to be able to use

I really like when a set of skills for a build have a common theme, so Id love to see skills with similar core scaling or natural synery have mtx sets that can bring them together, for example:

A plant themed mtx set for the bone spells that are so often used alongside entangle/thrashing vines.

Or some sort of more natural themed mtx for skeleton summons if they are popularly used alongside companion builds.

I know it's less popular, but I'd also love a sand or time themed set for chaos amd fire spells.