Playing Trollbloods at Rookie Mistake V

So, we have these 16-man tournaments in Oslo called Rookie Mistake. This is going to be first time playing Trollbloods in a tournament. I have practiced way too little, so I expect this to be fairly hard...

My lists:

Borka
- Mauler
- Mulg
Fell Caller
Stone Scribe Chronicler
10 Kriel Warriors + UA + 2x WA
4 Krielstone + UA

Reinforcements:
3 Long Riders

This list is my heavy hitter list, which I intend to play if I run into Colossals and suchlike, or anything else that Jarl cannot punch through. Mulg can get up to a juicy POW 23, and Borka, the Mauler and the Cabers also hit pretty hard. The Kriel Warriors are there for being annoying and Iron Fleshy while I set up my heavy punch.

Jarl
- Bomber
- Impaler
Fell Caller
10 Kriel Warriors + UA + 3x WA
Feralgeist
Chronicler
Swamp Gobbers
10 Pyg Burrowers

Reinforcements:
3 Long Riders

This list is supposed to be a fairly grindy and accurate list, to use against troops swarms. A clear weak spot is the fairly low POW in the list, but on the other hand it has 31 Tough infantry models...