When Captain Marvel killed Thanos, he took away Drax’s entire purpose in life. So, naturally, Drax decides to fight Mar-Vell. But before the fight is over, Drax learns that Thanos is alive and so he leaves to resume his hunt.
Yes, it’s a pointless story.
Creators: Steve Englehart and Al Milgrom
For the complete history of the MU, year by year, go here.