the actions of the heroes: the player can set map waypoints for them, controlling the type of AI they use and directing the skills they use. Heroes are unlocked through play and can be taken into PvE areas. A new PvP arena was available specifically for players to fight each other with their Heroes but has since been removed. Heroes can be acquired by all characters (Tyrian, Canthan, Elonan) and used in battle if the player has a Nightfall or Eye of the North account. Additionally, each other campaign has a hero available to add to Nightfall (an assassin for Factions, and a necromancer for Prophecies). PvE gameplay As with the other Guild Wars campaigns, the maximum level for all characters is twenty. Nightfall strikes a middle ground with the other Guild Wars campaigns with the amount of time spent leveling; faster than Prophecies, where much of the game is spent achieving level 20, but slower than Factions where level 20 is very quickly achieved. New PvE-only skills have been introduced available by gaining ranks in titles. The "Sunspear Rebirth Signet" is available by reaching a certain rank in the Sunspear Rank track, and each profession has been given a special Sunspear skill that increases in power as the player's Sunspear Rank increases. "Lightbringer's Gaze" and "Lightbringer's Signet" are available upon reaching level 2 and level 3 in the Lightbringer track, respectively (these skills also power up as the player's Lightbringer Rank increases). Also, wearing the skill title "Lightbringer" increases damage done to certain creatures in the PvE environment. Gaining higher ranks in the Sunspear and Lightbringer titles also awards players with hero skill points, which can be used to unlock new skills for themselves and their heroes to use; while buying skills with regular skill points (earned by levelling up and completing missions) can still be used to gain new skills, this method only allows you to unlock skills from the player's chosen professions; using hero skill points allows you to unlock skills from any profession. Further benefits of title tracks have also been integrated into the game since; for example, the player's ranks in the Lucky/Unlucky (gained by playing various in-game gambling activities) and Treasure Hunter (gained by attaining "rare" items from chests) title tracks aid the player's chances of lockpicks not breaking when opening chests and reducing the chances of an item being destroyed when salvaging upgrade