Reim's basic attacks deal 20-54 (+125% crystal power) bonus crystal damage over 2 seconds and grant 50% of the damage dealt with this effect as fortified health (reduced against non-heroes).
Reim's attacks and abilities also chill opponents. Basic attacks against targets that are already chilled apply a 60% slow that decays over 0.6 seconds.
(Fortified health absorbs 50% of incoming damage until it is depleted.)