Help with a Templar Guardian Minion Staff build.

Hello all! I'm interested in trying my hand at building a character that I have in mind for the next league and need help. I want the concept (coming from a role-playing background) to be kind of like an undead general. I'm planning on a Guardian Minion build that uses a staff. I would like to have the following in the build but am flexible:

SRS
Specters
Zombies
Skeletons (Vaal, hopefully, I find one early)
(maybe a Golem)

A Warcry
An aura or two (maybe relic, maybe war banner depending on what works best.)

Frostblink or Flame Dash

I'd like him to use a Staff now that they might be more viable (I've always liked the look of staves!)

My problem is that I tend to over do certain aspects during my build. I have started playing with a couple of test/prep characters trying to figure out the playstyle and they feel strong.

My main questions are:
What nodes should I look at for my staff? I don't really need to include any but I don't want to miss any opportunities.

Should I use frostblink or flame dash? I kind of like the freeze from frostblink.

What warcry should I get to help out most with damage?

What auras should I consider and what aura nodes are most useful that I should go out of my way for?

I'm thinking of the following build: https://pastebin.com/9wdydm4F

Thank you for any thoughts, advice or help!

Daoen