Patch 0.28d: - Reroll cost for new units from 5 gold before level 10 and 7 gold after, to 4 gold before level 10 and 5 gold after. - Frost shock can now max be upgraded 5 times. - Healing Wave base heal from 10 to 14 health per second. - Healing Wave heal upgrade from +5 to +8 health per second. - Healing Wave base attack speed increase from 30% to 40%. - Healing Wave attack speed upgrade from +10 to +20% increased attack speed.