I'd go 5x LR Recast and then either 5x LR Effect or 5x SE Recast. Personally I go for 5x LR Recast/Effect. LR Recast/Effect is globally useful whereas SE Recast is only useful in a few situations. Basically with 5x LR Recast/Effect you get a 30 second Berserk every 4:10 with haste 15%, effectively.
Desperate Blows is a group 2 merit.
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