The main Feature of the mod (in it's current state) is skill trees, consisting of damage and movement skill trees, each tree has 17 abilities, 9 actives and 8 passives (passives, once unlocked, are always active or activate after a certain condition is met, actives, once unlocked, require an explicit player input to activate) this allows the players to spend their XP levels on unlocking these abilities
some examples of each tree are
Movement:
Dash
Double Jump
hyper jump
fire resistance
Damage:
arrow
revenge
berserk
vampire
other skill planed trees include support, building and magic