As a player and EA account holder ...
Please have your attorney read the
game Terms of Service first. I think he (or she) will then advise you there is little ground to stand on. Especially Section 5c (Rights and Responsibilities. It is cited here - please note the bold part ...
c) Rights. You acknowledge and agree that all characters created, and items acquired and developed as a result of game play are part of the Software and Service and are the sole property of Electronic Arts. You acknowledge that: (i) the Software and the Service permit access to Content that is protected by copyrights, trademarks, and other proprietary rights owned by Electronic Arts or Content Providers (collectively, "Rights"), and (ii) these Rights are valid and protected in all media existing now or later developed, and (iii) except as is explicitly provided otherwise, your use of Content shall be governed by the copyright laws of the United States and other applicable laws. You agree that you may upload or otherwise transmit on or through the Service only Content that is not subject to any Rights, or Content in which any holder of Rights has given express authorization for distribution on the Service. By submitting Content to any area on the Service, you automatically grant (or you warrant that the owner of such Content has expressly granted) to Electronic Arts the royalty-free, perpetual, irrevocable, non-exclusive right and license to use, reproduce, modify, adapt, publish, translate, create derivative works from, distribute, perform and display such Content worldwide and/or to incorporate it in other works in any form, media, or technology now known or later developed for the full term including any renewal term of any Rights that may exist in such Content.
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Sorry, you do not own a thing of ingame materials.