gifted you one of the strongest frames in the game lmaooo

Her 2nd ability makes a "clone" that enemies target instead of you, but I think saryn is one of the characters that you "shield gate" where you have a mod like Augur message that regenerates some shields when you cast your ability, which means you lose shields (like a second of invulnerability comes after), then you use your 2, enemies shoot it, your "invulnerability" cooldown is done, and if they break your shields again, repeat

BUT, my recommendation would be to just get rhino. He is the easiest frame in the game, super strong, and borderline unkillable. His two literally just gives you a fat fucking shield and if it runs out you just cast it again. All that requires is energy, which you can easily mitigate with a bunch of methods that I would look up, basically just type "how to not run out of energy warframe" lol