update2016-02-22:
upload the file made by MrFisse, the commnet says it is compatible with 1.12, and I used it myself in 1.12, no problem, and it is a 5/10/15 version.
basicly the same function as Enhanced Runes by thril1
but since the mod tool is released, so I hope use nmm to manage mods, so I create this nmm version by the wcc_lite(official mod tool).
only tested in 1.08.2, it do apply to existing runes and glyphs, and support ng+
Vanilla Version- Rune Variations
Lesser Runes = 2% | Normal Runes = 3% | Rare Runes = 5% strength
Lesser Glyphs = 2% | Normal Glyphs = 3% | Greater Glyphs = 5% strength
Enhanced Version - Glyph Variations
Lesser Runes = 5% | Normal Runes = 10% | Rare Runes = 25% strength
Lesser Glyphs = 5% | Normal Glyphs = 10% | Greater Glyphs = 25% strength
but only Rune veles greater is 20% strength
for Rune svarog is 20, 40, 80
how to install
download it with nmm and activate it or download it and extract it to gamefolder\Mods\
How did I do it
1. install mod tools
2. in cmd: