Potency Increase is a buff that increases heroes potency by 30%.
Potency is a crucial stat that determines a chance to inflict a negative status effect aka debuff.
While in the battle, you can tap and hold the Buff icon and read what it does.

Here's a list of heroes who can apply Potency Increase:
  • Victoria (Ability 3)
  • Mara (Passive Ability)
  • Solius (Leadership Ability)
  • Rantha (Leadership Ability)
  • Korkhrim (Passive Ability)
  • Sabator (Passive Ability and Ability 2)
  • Tromgar (Leadership Ability and Ability 3)
  • Zerra (Leadership Ability)
  • Nightiel (Ability 3)
  • Kiana (Passive Ability)
  • Thalanne (Passive Ability)
  • Old Loor (Ability 3)
  • Instructor Gorram (Ability 3)
  • McRat (Leadership Ability)
  • General Murdock (Passive Ability)
  • Hilda ( (Passive Ability and Ability 2)
  • Kang Xi (Ability 3)
  • Lake (Leadership Ability)
  • Lei Zi (Passive Ability)
  • Ember (Passive Ability)
  • Yogi (Passive Ability)
  • Sindri (Ability 3)
  • Zappy (Ability 3)
  • Hell Kitty (Ability 3)
  • Archi & Ro (Passive Ability)
  • Bar & Rel (Ability 3)
  • Drago & Nas (Ability 3)
  • Keb & Bab (Ability 3)
  • Buff (Ability 2 and 3)