I think you might have a little bit too much support. Runebearer and maxed stone seems a bit much. Also, if something is worth doing, it is worth OVERdoing. You can play basically the same list but with 26 Kriel Warriors instead of the 6 Warders...
conflictchamber.com/#c7201b_-0a4X9D5-6G6G0n0o0o0k0m0b0c0b0cTrollbloods Army - 75 / 75 points
[Theme] Band of Heroes
(Madrak 2) Madrak Ironhide, World Ender [+28]
- Dire Troll Mauler [15]
- Earthborn Dire Troll [15]
Fell Caller Hero [0(5)]
Fell Caller Hero [0(5)]
Kriel Warriors (min) [7]
Kriel Warriors (max) [11]
Kriel Warriors (max) [11]
Krielstone Bearer & Stone Scribes (min) [6]
- Stone Scribe Elder [3]
Trollkin Fennblades (max) [15]
- Fennblade Officer and Drummer [0(5)]
Trollkin Fennblades (max) [15]
- Fennblade Officer and Drummer [5]
I just HAVE to try that out