Vex Mythocast Farm?

[limber vine]

Is it possiblee to do the Vault of Glass Raid so many times you want until you get Vex Mythovast?
Or it is limited to a certain amount of runs per week?

[unreal scarab]

if it isn’t featured you only have 3 chances (1 per character ), if it’s featured you can infinitely farm the exotic

too bad vex sucks now