I guess that Ilyanka eydolon is just a pile of orbs, nothing more - if you have Tiamat, she is much better, if you don't have Tiamat - you can't fill grid with water eydos anyway so don't bother about her, at least before both ssr weapons and apotheosis are bought. Btw, i like idea to get 20 HE for 3+3+0+0 each, i can get much more mats if use them for ulties.