PvP
PvP or Player versus Player, allows Players to battle each other. Currently there are 2 PvP modes, The Wolves' Den and Frontlines. The Wolves' Den is a 4 vs 4 battle arena while Frontlines is a large battlefield consisting of 3 opposing teams. In PvP, players have special Actions and Traits and can obtain unique gear.
The Wolves' Den
The Wolves' Den is the PvP Arena that supports 4 vs 4 player combat. Arena PvP is divided into 3 divisions: Level 30, Level 40 and Level 50. The Wolves' Den is located in off the shores of Moraby Drydocks in Lower La Noscea. It was released in patch 2.1.
The Feast
Competitive PvP mode featuring 8v8 and 4v4, ranked and unranked, party and solo.
Frontline
Frontline is a large battleground featuring 3 opposing forces of the Grand Companies. Up to 72 players, 24 players on each team, will be able to battle for supremacy. It is located in Carteneau Flats near Mor Dhona. Frontlines was released in patch 2.3.
In patch 2.5, a deathmatch mode, Borderland Ruins (Slaughter), was introduced.
Seize
Seal Rock (Seize) is a PvP mode introduced in patch 3.05, in Heavensward expansion. Similar to Frontline, Seize splits 24 to 72 players into 3 opposing teams.