Walmart is getting a Thanos exclusive Marvel Legend figure. This is a repaint / tweak of the recent comic book build-a-figure. It comes with alternative head and a swap out arm so he can wear his infinity gauntlet.
The figure was briefly listed on the Walmart website, but has since been pretty much removed with a very odd "Minecraft Avengers Thanos" placeholder left behind - is there a crossover in the works we don't know about.
The figure will retail around $20 in the US. Whether it will make it across to UK Asda stores is not clear, they did get the Civil War exclusives of Falcon and Winter Soldier in 2016, but these really didn't sell well and 6" Legends have not been seen since on an Asda shelf?