HoM[M]ie
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IMHO, the light at the end is more useful. For example, you can cast a spell to give slow Gnomes speed or a punishing strike, and if you cast Stone Skin, it will be a headache for the enemies. :) I think the Rune cooldown when it's created will be not very effective, because at high levels, the hero usually doesn't lack mana.
aka Sir Holmes aka David Jones.
