Switch rez and valkyrie

[SonnyTater-1204]

I think Valk should still be ult, but Res should be tied to Valk

@SonnyTater-1204

I dont think Mercy will ever be reverted and Res still seems to be a big issue for people so I was thinking… what are some ways to change her without making it feel like a hard nerf. Hows this: