Flat Tusk has a reputation as a particularly dangerous foe, primarily because he is one of, if not the first, elite mobs an orc or troll will meet. Thus, new players will sometimes, not knowing what the elite tag indicates, horribly underestimate him and are killed extremely quickly.
For most classes it is a fact that he can be soloed relatively easily from level 14 onwards. Adventurers below that level are advised to find some friends before attempting to slay him. You should watch out for any Quilboar mobs nearby.
He was one of a very few old-world elite mobs who kept his elite status after Patch 2.3.
[Battle Stance]ωϖ—Assumes a balanced combat stance that generates rage when the warrior is hit, as well as when the warrior strikes an opponent. Lasts until cancelled. Instant
[Heroic Strike]ωϖ 5 yd range—A strong attack that increases melee damage by 11 and causes a high amount of threat. Instant
Trivia
He has exactly 666 health, the mark of the beast, just like Hogger does.