https://old.reddit.com/r/Warframe/comments/1fxqydn/citrine_is_arguably_one_of_the_most_powerful/

By replacing her 4th ability with breach surge can create an almost infinite damage/debut loop. Simply cast her third ability and the her 4th (breach surge) and the hit enemies with her 1st ability to start the loop. If you add [Archon Continuity], the toxin proc from her 3 will strip armor, [Archon Stretch] will give you nearly infinite energy. With a shotgun using [Galvanized Savvy], you can easily mow down enemies. She cuts through enemies in the steel path like an [Exalted Blade] through infested.