The skin of the long dead troll king Uffga the Barrow Squatter. After Vanlade the Vanadrott slew Uffga, he flayed the ancient troll and inscribed the skin with runes and blessings of Blood magic that preserved in it the character of its original owner. Vanlade, who was already a wise and ancient Van, had not become old through incaution, so he gave the skin of the querulous old troll to one of his favored einheriar and it was with only mild surprise that he found Uffga's quarrelsome stubbornness eventually dominating the will of the einhere. In time the skinsuit almost subsumed the personality of the einhere and his body turned into that of a troll, though one of lesser stature and power. Vanlade was forced to slay this diminished Uffga again and wisely decided to pass its skin on to followers who would not have to spend time in his vicinity, lest Uffga once more try to work his vengeance on Vanlade through his remains.
基本的にはブースターとして利用される。鎧で地魔法をブーストする手段は他には超高価なRobe of the Magiぐらいしかなく、その代わりとして選ぶには手頃。魔術師の貧相さもいくらか補える。
またTroll化は元の特殊能力こそ喪失してしまうものの、魔法スキルが健在なままで変化する上に敵に回るわけでもなく、むしろほとんどの魔術師にとっては維持費低下、耐久性の向上など利点の方が多い。
さらにTrollは寿命も長い（400年）ので、老齢な魔術師を疑似的に若返らせることすら可能。これらは地魔法を持たない魔術師でも享受できる利点なので、適当な地の魔術師が居なくても活かす余地はある。
変化による明確な欠点は、Stoneskinの影響も含めた火炎・冷気の2属性の弱点と、控えめな魔法抵抗（それでも14）ぐらいだろう。これらも補おうと思えば十分に補える程度なので、忘れさえしなければ問題は無い。
