As of Hotfix/Update 22.0.3-22.13.1 Vazarin Guardian Blast additional cost for each ally hit makes ability cost to much and not function correctly. Void Blast costs 25 energy, while Max Rank Guardian Blast ability is active in the focus tree it will cost an additional 25 energy for each ally hit within 8m and grants them 160 shields. This results in Void Blast using 50 energy per Void Blast when near 1 Warframe. 75 Energy per Void Blast when near 2 warframes. 100