Experience and levels

Levels: every player starts at level 0 and earns experience (XP) from battles, with more sources to come. Reaching level n takes 100 × n + 50 × n(n − 1) / 2 experience in total, so each level costs 50 more than the last. A win against a player gives 12 XP and a loss 3, scaled up 50% for every 100 Elo above 100 in the same way as coins. A bot gives 4 XP for a win and 1 for a loss. Draws and failed matches give none. Every level also grants rewards, such as stat points, ability and trait slots, upgrade points and class choices, which shape the World fighter. Levels are public, the experience arrives with the coins once the shared playback ends.