[Tai-Pan]

I see a couple things that might work with Command Couriers.

With Skahen, a Courier can run to her, she can take a turn, and, with cover fire, she could move a courier twice, helping them get in range of other heroes with which one might want to take a turn (with the next OM, of course)

A network of Couriers (2-3) would be really good, especially as common heroes because one marker on them can activate any Courier on the board.

Courier's are also very helpful for Otonashi, which she really needs. Probably shouldn't be the main function, but maybe a nice bonus once in a while.

Courier's add cooperation to Vydar's Army in a good way, making the Maverick Vydar heroes able to work together more easily.

A Courier next to (or within moving range of) a hero on a glyph, or a hero next to a Courier on a glyph, makes for a good defense. Using other Couriers elsewhere, the battle can be fought there, but if someone wanders over to a glyph unexpectedly, you can activate that Courier to activate that hero and hit them.