Seven Shadows Evasion is stated to be a PERFECT Dodge, Green. It can be used reflexively in response to an attack. In addition, "Flows Like Blood" can be used in conjunction to extend that effect to an 'onslaught'. In Exalted, an Onslaught is when a foe makes multiple attacks, just as your mech fired a laser and a missile volley.

I will add more detail to the dodge itself, however... as you have a point on that detail.

No. Her Anima is not the same as her "God-Forged Champion of War" spell. The spell was cast a few posts ago, and lingers for a scene (which in this case would be the whole fight). Her ANIMA is a field created by her spending motes of peripheral essence. It works much like how a Super Saiyan is surrounded by that yellow aura. When they ramp shit up a notch, they have that aura. Same with characters in Exalted. Ysolda's Anima manifests as a secondary armor that would be there with or without the God-Forged Champion of War spell.

She has been charging "Total Annihilation" since the post before last, when she focused her rage and basically told you "Stand down or else."

This should be most fun.