Sainsbury's have all of their Lego Dimensions packs on BOGOF at the moment with the cheapest item being free.
They had the Team and Fun packs in the shop I was in today.
What is LEGO Dimensions?
When a mysterious and powerful vortex suddenly appears in various LEGO worlds, different characters from DC Comics, The Lord of the Rings and The LEGO Movie are swept away. To save their friends, Batman, Gandalf and Wyldstyle bravely jump into the vortex and quickly find themselves fighting to save all of LEGO humanity.
Let creativity be the guide to a building and gaming adventure – journey through unexpected worlds and team-up with unlikely allies on the quest to defeat the evil Lord Vortech. Play with different minifigures from different worlds together in one LEGO videogame, and use each other’s vehicles and gadgets in a way never before possible. LEGO Bad Cop driving the DeLorean Time Machine…why not?! The LEGO Ninjago Masters of Spinjitsu fighting alongside Wonder Woman...yes, please! Get ready to break the rules, because the only rule with LEGO Dimensions is that there are no rules.