Hello Crystal!
Welcome to planDisney! I love that along with Mickey and his Friends you can enjoy the entire Marvel universe when fans of all things Disney. Deadpool is a fun character to watch and while my son is not allowed to see any of his movies he loves drawing him and collects his figurines.
I wish Walt Disney World Resort had Marvel characters walking around the Parks. However,
Disneyland Resort has all the fun when it comes to Deadpool. Maybe you can bring some of his witty humor to the Parks during
Mickey's Not-So-Scary Halloween Party. According to the
Park Rules, Guests 14 years and older cannot wear headwear that covers their face, and costume masks of any kind may not be worn so I'm glad you have accepted that rule. As for the rest, as long as you do not have any sharp items or props that could be mistaken for an actual weapon then you are fine. Since Deadpool is already leading Story Time in Disneyland Resort I see no objection to you dressing up as him in Walt Disney World Resort if done within the Park Rules. However, realize that the final answer will always be at the discretion of the Cast Members at the Park Entrance.
Every hero loves snacks and before enjoying the festivities, look at the
Foodie Guide from the Disney Parks Blog. I am very excited about the Chipotle Barbecue Pork and Street Corn French Fries from
Casey's Corner. I'm hearing that the Minnie Mouse: Hocus Pocus Halloween Dress-up Sipper is a hot item and a limited amount are available during the Party so if you want this make sure to be at
Sleepy Hollow as soon as you can to be in line to grab one!
I hope that this helps and you have a great time!
Chimichangas!
-Nimmy