'Avengers: Infinity War' Promo Art May Reveal Who Holds the Soul Stone 

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Fans have been wondering about the last missing Infinity Stone for some time now, and we\'re likely to find out when

hits theaters in April — unless this new piece of promo art just spoiled it.

The new piece shows the six different Infinity Stones and a hero whom they each correlate to, and the Avenger with the Soul Stone is surprising.

Infinity Stone Promo Art. from r/marvelstudios

Iron Man being with the Soul Stone is surprising, though we don\'t know the context of this tidbit at this time. Of course, Tony Stark is the biggest character in the Marvel Cinematic Universe, so leaving him off a piece of art for the biggest film in the franchise would be a dubious choice.

But the other characters all coincide with the films where the individual Stones first debuted. The Tesseract was in

It\'s unlikely that Stark has been sitting on the Soul Stone this entire time, but he could get his hands on it in

Many fans speculated the Soul Stone would appear in

, and some were mildly disappointed when it didn\'t show up.

director Ryan Coogler gave his reasoning for the omission, saying it would have been too much for the film that already had its own powerful artifact in Wakanda\'s source of Vibranium.

"I love the Infinity Stones as much as any comic book fan, it’s just Wakanda already has its thing, which is Vibranium," Coogler told IGN. "For us, that was special enough, so to throw in something like another special thing didn’t feel right. It felt like we should stick with our one MacGuffin for the country and explore that, let that be the important thing because, frankly we didn’t need to have another piece like that. [Marvel Studios] never really was interested in putting a stone in there, either."

, there\'s a chance that it pops up in the past — in the \'90s-set

'Avengers: Infinity War' Promo Art May Reveal Who Holds the Soul Stone

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