Lancers are the traditional sword-and-board tanks in Tera. They have a huge attack range thanks to their lances, and must actively block with a shield to mitigate damage. Learning to read enemy attacks and time shield blocks is vital to survival, and they do a solid amount of damage to boot. They have extreme survivability and are an essential part of any group.
Mystics are a really strong support class; they have a variety of buffs, snares, and auras to boost a group’s survivability. They deal damage primarily through damage over time abilities and frontal AoEs, and are highly sought after on every server.