In an issue of the Deadpool comic series, Deadpool gets his hands on the Continuity Stone, which gives the characters the power to talk to the comic book writers themselves.

Does Deadpool have the ego stone?

Over the years, five more gems have appeared in the comics and other mediums; the Ego gem is perhaps the most famous one seeing as its tied to the original six. ... In that particularly comic story, Deadpool steals the gem from Thanos and uses it to communicate with the writers and editors at Marvel Comics, hence its name.

Who has the 7th Infinity Stone?

The seventh Infinity Stone is actually the Ego Gem from Marvel's Ultraverse. As per the Gem itself, it is the original consciousness of the six Infinity Games, the original being and a sentient object that wants to reunite with the Infinity Stones that came to being after its destruction.