I cant figure out why my path which is at 100% opacity and above the red edge of my card, is showing through. I cant even think of how to google this error.
I've expanded the "red card" it has a white background...please help!
Your question is slightly unclear. I understood that the dinosaur is 100% opacity, but you can still see the red and white card.
Make sure the card is underneath the dinosaur.
Select the card. Press CTRL + SHIFT + [. Now the card is behind everything in the page. If you have a background, the card went behind it, so press CTRL + ] to bring it in front of the background, but behind everything else.
The dinosaur might have a blending method on which is making it show what is underneath even though it is opaque.
Select the leg of the dinosaur. Open the Transparency window.
To the left of the Opacity option there is a dropdown of Blending Method options. Make sure yours is on Normal, like in the above image.
If the above don't work you will have to delete part of the red outline from the card.
There! Now you have the red outline minus the part that was showing through the foot, so there is no way it will show.
Are you sure the leg layer (in case the two legs were created in separate layers) is ABOVE the red line of the card?
select the card outline and try finding the layer placement.
Maybe it is above the second leg. In that case, simply move the second leg layer below the card outline layer. (I know this is not Photoshop and objects are not automatically layered, but it is worth a try!!)