Experience points are required in order to level up and to gain Legendary Ranks. The only way to earn credits is to fight in 1v1, 2v2, Juggernaut, and NPC battles against NPCs that are not more than 5 levels lower than you. Winning against same level opponents/teams earns you 12, 24, 24, and 12 experience points in 1v1, 2v2, Juggernaut, and NPC battles, respectively. Losing earns you 6, 11, and 11 experience points in 1v1, 2v2, and Juggernaut battles, respectively (you do not get experience points from losing in NPC battles). In a losing 2v2 or Juggernaut battle, defeating one of the two opponents will earn you an additional 6 experience points. In 1v1 and 2v2, winning against opponents/teams that are higher level than you/your team will reward additional experience points based on the difference. Defeating NPCs that are lower level than you will reward fewer experience points.
Experience Boost can be bought for 50, 175 or 495 Varium from the Upgrade Shop. The boost doubles the amount of experience received from battles. The duration of the boost varies depending on the one you purchase and if you lose, the XP gained is not doubled.
Between the hours of 10 - 11 AM (EDT) and 10 - 11 PM (EDT) from Monday - Thursday and all day Friday, Saturday and Sunday, XP is doubled from the effect of Power Hour. If you lose, the XP is not doubled.
Experience by Level
Experience by Legendary Rank
Experience points gained in Legendary Mode, which is unlocked when a player reaches level 40, increases Legendary Rank instead of level. For each Legendary Rank, you need to earn 7500 experience to reach the next Legendary Rank.