Sharpen: Weapon damage +50% for 4 attacks. 5% increase per point.
Bite: Bite for 45 damage and regain 50-100% of the damage you deal as health. 11-15 damage increase per point damage increase per level. Unlocks after The First Recruit.
Fracture: Reduce enemy physical resistance by 5%. 1% increase per point. Unlocks at Level 8.
Fortify: Increase your armor by 150 for 3 turns. 15 armor increase per point. Unlocks at Level 18.