All The Tropes Wiki Project, Part XII

[Norgarth]

Okay, another "do we have this?" question.

Several people all take part in some critical action by taking hold of a weapon or object that is key to the action.

Examples:

• The spirits of the Sailor Senshi all joining Usagi in casting through the Moon Wand at the end of season one of Sailor Moon
  
• Harry and Ron joining Hermione in driving the basilisk fang through Riddle's diary in The Arithmancer
  
• Skuld, Rin-rin and Kaolla Su throwing the Big Switch together in this "Girls, Girls, Girls" excerpt
  

Does this ring a bell for anyone?

I'd refer to that as something like "All together now" or "A little help from my friends", but my mental shorthand rarely matches the common Trope titles.