With your permission, I've suggested he join the Avengers... as my replacement! He calls himself... the Panther!! 
This issue collects following issues:
Avengers #51
""In the Clutches of... the Collector!""
""In the Clutches of... the Collector!""
Avengers #52
""Death Calls for the Arch-Heroes!""
""Death Calls for the Arch-Heroes!""
Avengers #53
"In Battle Joined!"
"In Battle Joined!"
Avengers #54
"...And Deliver Us From--The Masters of Evil!"
"...And Deliver Us From--The Masters of Evil!"
Avengers #55
""Mayhem Over Manhattan!""
""Mayhem Over Manhattan!""
Avengers #56
"Death Be Not Proud!"
"Death Be Not Proud!"
Avengers #57
"Behold... The Vision!"
"Behold... The Vision!"
Avengers #58
"Even An Android Can Cry"
"Even An Android Can Cry"
Avengers Annual #2
"...And Time, the Rushing River..."
"...And Time, the Rushing River..."
X-Men #45
"When Mutants Clash!"
"When Mutants Clash!"