Goldenring - Goldenring - Hydra - Mandragora
1.5 * 1.2 * 1.2 * 1.2 = 2.16 or 116% more damage. So far, this has the biggest damage output.
I'm a little confused on the math here... If the 2 Goldenrings are the 1.5, the Hydra's the 1.2, and the Mandragora's another 1.2, where's the third 1.2 coming from? o.O