In case you were wondering, there's no Infinity War spoilers here! Just a look at an older piece of promotional art.
Although the assassins of Assassin's Creed mostly exist in different periods of time and have never met each other, that didn't stop artist Turul from imagining them as one cohesive unit. Using the Avengers: Infinity War poster as a base, they managed to smash in just about every major character from the Creed series, with some decent amalgams as it pertains to the Avengers poster. For one, Ezio taking up the large prolific Tony Stark space is pretty perfect, as is the similar pose.
As someone who has played through all of the AC games (with their many ups and downs) I also got a little nostalgic for some of the characters who are no longer with us.