Beat Giovanni Shadow Suicune (GARCHOMP team) with a Low Level Account in Pokemon GO

How to beat Giovanni’s Shadow Suicune team when it has Shadow Garchomp in the middle, and with low-level or casual accounts. My wife is level 30, the viewer (4TheLoveOfGaming) is level 29, but both play quite casually.
#TeamGORocket #Giovanni #ShadowSuicune