Super Heroes is a subtheme of Juniors that consists of 5 sets that as of now ran from 2014 to 2016.
The LEGO Juniors theme is designed for children aged 4 to 7 years old and designed to introduce kids into the LEGO system from Duplo. LEGO Juniors was release in February 2014, with the tagline Easy to build and was the successor to the Bricks & More theme.
Summary
Juniors Super Heroes Iron Man vs. Loki set 10721 was released in March 2016, retailing for $13, but has since been retired. New, unopened Iron Man vs. Loki sets are valued at $51, while used sets can be found for $33 in good condition.
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