Abilities don’t do damage nor heal
In Ataivsm X.2 (10.2.0) new statistics were added that can alter damage and heal outputs.
Verify that you have damage_dealt, damage_rec, health_dealt, health_rec set to 100 in the Stats Plugin in the Atavism Editor, to define 100% damage and heal power
And also in the Player Template, to define the same 100% value for players.