Tiger claw and variations come to mind.
I donīt think "raking" on itīs own is considered a type of technique(s).Tiger Claw then is a strike,with clawing effect dragging nails down the opponent (usually over eyes I think,maybe to throat,face region etc. but with limited effect I think)
Flesh tearing&actual tearing of connective tissue etc. which Waidan mentioned is probably more like a case of chin-na and not that much raking,would take a grabbing effect like eagle claw to pull that off.Just my opinion though.
The sunsetīs setting down.Lay me on the forest floor.
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-FC, summer of 2006-