The very first faction I really invested into playing in this game was Trolls but sadly it has been some time since I've returned to my Blue roots and I'd like to fix that. Over this time, though, I've found I don't like playing slow armies and so I want to cast aside some of the classic slower troll lists in favor of playing a blitzkrieg of trolls. Sadly I've barely played my trolls since Mk I so I could use some advise from players with more practice on how to build a decent and fast troll list. Models I can see being helpful for this:
Jarl: has Quicken, Tactical Supremacy, and Weald Secrets, he's basically the biggest speed booster we've got.
Grissel: has Hoof It, I prefer Jarl's quicken as it allows you to charge but still she makes models move a lot farther.
Grissel2: her feat gives Hyper Aggressive which may enable some models to move further. More realistically casting Dash will speed up your army.
Borka: His feat gives +2" on the charge/slam/trample.
Doomy2: Feat + Rush + Earthborn = goes really far.
Grim: can give out pathfinder which can help with mobility.
For fast units I'm primarily looking at Fennblades, Long Riders, and Scouts as the best candidates. The Fennblades UA seems like a must for making the unit even faster. For beasts the Earthborn and the Axer are the obvious choices for speeding up my battlegroup. I also really want to give the Battle Engine a go, it's an awesome looking model and is quite fast which fits in with what I'm looking for.
So those are my thoughts so far, what advise/opinions do you guys have on building a fast Trollbloods list? I know it's possible, I'm just not sure on exactly how to build the list I want. My rough plan is to send a wave of fennblades crashing into my opponents front lines by Turn 2 and then while he's stuck clearing them out the rest of my army comes in as wave 2 with long riders possibly serving as either wave 1 or wave 2 depending on the opponent.