Heres are unlocked in Assassins's Creed Rebellion by collecting the required amount of DNA Fragments during gameplay. Once you have the specified amount of DNA Fragments you can recruit them by tapping the 'Heroes' icon of the menu at the bottom of the screen. When a Hero is then ready to be recruited you just need to tap on them to automatically add them to your roster.
There are four rarity levels:
• Common
• Rare
• Epic
• Legendary
These can then be divided into three categories.
• Enforcers
Enforcer Heroes specialise in direct melee combat and they can deal/sustain a lot of damage.
• Shadows
Shadow Heroes specialise in stealth approach and avoiding direct combat.
• Specialists
Specialist Heroes have varied skills that support their teammates on missions.
All the Heroes have one of the following roles:
• Tank
Tank Heroes have good defense stats, but poor attack stats.
• DPS
These Heroes are Attackers
• AOE
Heroes with AoE skills are able to attack multiple enemies.
• Heal/Healers
These Heroes are able to restores the health of allies.
• Support/Supporters
These Heroes helps party members.
• Disarm
These Heroes help you in trap rooms by disarming the mechanical objects.
• Navigation
These Heroes are good in wall climbing, lifting, and in navigating.
• Stealth
These Heroes have assassination, disarming, and navigation abilities.
• Assassination
These Heroes are able to silently kill the enemies or avoid enemies.
To increase the power of a Hero you can promote them, equip gears, or train them. To train them you must assign them to the Training Room where you then select the number of Codex you wish to use. Codex along with coins is the currency used to Train your Heroes. The upgrading process takes but can be bypassed if you wish by using Helix. Upgrading Heroes via promoting is achieved by gathering DNA Fragments from the cubes or missions. Upgrading Heroes by equipping gears is done at the workshop where you craft accessories, the armoursmith where you can craft weapons, and the weaponsmith where you craft weapons for the Hero.
Although there is no one best hero as they each have strengths and weaknesses, one that you may want to consider is Luisa Gallego. Luisa is an expert thief of the Thieves' Guild of Madrid. Her specialised training allows her to scale just about any wall and leap over any obstacle. It is reputed that no location is unreachable to her. Luisa's active abilities also make her fairly good in combat. The downside to Luisa is that it is difficult to farm her DNA Fragments as they are behind the 'All rooms cleared' level.