Stand back twenty feet out of range of her feet. Wizard just needs to enchant one of the archer's arrows with an expand-on-flight wind spell. The archer aims for the femoral artery, wind spell makes it penetrate farther and take more flesh with it, sending her body into shock from the sudden disruption to her circulatory system. She'll possibly faint, giving the knight and warrior the chance to slash the tendons in her legs or slice her throat. If she doesn't, it'll give the archer and wizard plenty of time to aim for her eyes and neck.
If the party of adventurers is good enough, being a giant just means there's more of you to hit.
@elevator eleven, no... run up there, climbe up the side of the cave, and into her panties. once there, start tickling her clit like crazy. make her orgasm until she passes out from exhaustion.
