Eidolon Synovia Destroyer
Can damage Synovias around 8-14k (yellow crits) and 15-20k (orange crits) from charged shots (Can 2-3 shots Teralyst Synovia, 3-4 shots Gantulyst Synovia and Hydrolyst Synovia).
Damage may vary what frame is used (I only use a standard-built [Trinity] with Eclipse. Eclipse on my [Trinity] has 225% damage bonus).
[Synth Charge] isnt viable now (Update 30.0.6). [Magnum Force] would be the next best mod
[Hawk Eye] is an optional exilus mod if youre having trouble where to aim. Same goes for [Lethal Momentum] if youre not able to easily land a shot.
I suggest equipping Arcane Velocity for spam charge shots
Secondary Merciless for passive 30% reload speed