Ranger Guild, the place where Elf players switch to the Hero profession, Ranger. Elves are naturally vengeful, and the Ranger profession maximized this trait through Hate Strike.
Ranger, each time you level up a Professional Skill, your troops gain +5% damage, +5% move speed, and a 10% additional damage to their nemesis.
The so-called nemesis occurs after an Elf Ranger has killed dozens to hundreds of the same type of creatures. They can use the compulsory sub-skill "Hate Memory" to designate that creature as a nemesis. Other sub-skills specifically target nemeses, like "Hostile Slash" with a 30% chance of a double hit, or "Frenzy Arrow Rain" which shoots all nemeses at once. Nemesis skills require the presence of Elf Clan units to be effective.