This is my WeakAura for Invo, I position over my Evocation button.
To use it, install WeakAuras, in your chat window type /wa and the bottom option on the right pane is to import, just copy and paste this string in there and hit done.
Code:
dyZBcaGlPqTnkiZvqZwfFsQWTvv2jfAVKDlA)sr(jf1WOIFR4AuIblLYWPihuv6YsoMs5CsjTqkPdtvlwQ0YbopLYtrESk9CunovvtfstwOPd6IkvDvPapJkDDuSrPI(MuInJsBhkMMQ4Rsb9zO67svJukKLrPA0qPXtb1jf4wkvoTsUNuQUPuu)fIxtbwBcv0suqclaR)wHb3j5HKP6CqEbxFwiVGRplhxrCraxhlI(effffQidBMLLxq15UNFhNF3wT)Vz5zBZUJy398i6m(OqfbMtjurFmh4sOckOigEHKfMcOUckYMzwwEbvN7(nKflUwCB5Vvh72T78l2DppIaf(AsuBMkrR7KI8x4AsUqfXHEauOIIdc(z6vxrXbHpmzuDfue7kxCScvuCqWptVSkkoi8HjJQRi8Z0JWc8FLO9hmniaXQhSzLbcN0ve(z6r8x4AsrCStVi(WKrrbjSaS(Bf(gJMtEydlVbVmappS5kU8H0WKrE47c0ObKn(ZKRi(WKrKlwFM1ruZm81vqbfLmFOGfoEb4Y4MOvuuqIzebblC8ciurtFAop2KvrG6ZSPc4Hdqu7Tlk9FfxOY4MOGeZyqb6G3uB7ZcGBtqbf1VIqSYOBlIWwlCSqz09x0DMtC6tzvqrEHkkiXmguGo4n12(Sa42efKWcW6VvyWDsEizQohKxW1NfYl46ZYXvqryKXThhhbLa