Marvel Collector Corps April 2018 Full Spoilers! Posted by Hello Subscription on April 17, 2018. Subscription Box Spoilers / Marvel Collectors Corp Spoilers . The links in this post may be affiliate links. Read full disclosure Save for Later Notification Marvel Collector Corps has revealed the full spoilers for the April 2018 Box! The theme was AVENGERS: INFINITY WARS Marvel Collector Corps has announced their new retail partner – it’s AMAZON! This is the final box for the subscription. Visit Marvel Collector Corps to purchase a box or find out more!