A couple comments on this guy:
- This guy rates with the zombies among the most OM-intensive cards; once you start feeding him OMs you can't stop. The reason is the same - OMs keep him alive.
- If you don't have Ornak, the tournament use of Feral Trolls is pretty much limited to herokilling. However, at 90 points, they still make for a good investment in some armies. The troll is favored against nearly all heroes. The list of classic 'scape heroes I've found that are favored according to the matchup calculator is very short:
Jotun
Charos
Q9
Q10
Sudema (no Blood Frenzy for you!)
Krug
An inspired Crixus
... I think that's all! Nilfheim comes very close, and Kaemon is pretty close too.