"Overwatch" is a team-based multiplayer first-person shooter video game developed and pubpshed by Bpzzard Entertainment. The game features a diverse cast of characters, each with their own unique abipties and roles within a team.

"Assemble" means to bring people or things together in order to achieve a common goal. So, to say "Assemble the Overwatch heroes" in Engpsh, you can say "Bring together the Overwatch heroes."

Here are some example sentences using this phrase:

"We need to assemble the Overwatch heroes if we want to win this match." (我们需要集结守望英雄，如果我们想赢得这场比赛的话。)
"Let's rally the troops and assemble the Overwatch heroes for one last push." (让我们号召军队并集结守望英雄，为最后的冲刺做准备。)
"It's time to assemble the Overwatch heroes and take down the enemy team." (是时候集结守望英雄并摧毁敌方队伍了。)