(( you shouldn't be able to move or use magic not even shape shift heck basically your sealed so edit it. Be more creative add more to the story.))
Gizzy knew one trick he could use against this spider, if he could just move one finger he should be able to use the spiders own webs against him. The Giant Spider started closing in fast and Gizzy only had a few seconds to pull off this trick and at the last second he pulled it off. Gizzy used the spiders own strings against him and now the web started becoming chains attached to the spider.
"You have lost, give up your in my web now." Then he helped Grey get out of the chains
"Grey go, go back now I'll deal with the rest"
((Seriously though go back))