More powerful version of Berkano /Bjarkan? (fast reply please)

[HPS Lydia]

Honestly, there's no need for the AU in all runes. I mean, look at the rituals we get by HPS Maxine and HP Cobra, with "Oss", "Tyr", "Sovilo", "Othal", and so on. There's no AU in them. Kinda makes you think.

Also, just because something is "more powerful", doesn't mean it's the best choice... a stick of dynamite is more powerful than a small knife, but which does a doctor use for performing surgery?