BUR #12872 has been approved by @nonamethanks.
create implication six_fanarts_challenge -> multiple_drawing_challenge
create implication let's_draw_pretty_girls_challenge -> multiple_drawing_challenge
create implication let's_draw_pretty_boys_challenge -> multiple_drawing_challenge
create implication let's_draw_handsome_boys_challenge -> multiple_drawing_challenge
create alias shirt_cut_(meme) -> shirt_cut_meme
create implication shirt_cut_meme -> multiple_drawing_challenge
create implication blushing_girls_are_cute_(template) -> multiple_drawing_challenge
create implication followers_favorite_challenge -> multiple_drawing_challenge
I think it makes sense to have an umbrella tag for these, because collage is full of other random stuff and does not work to search for this kind of content, which is pretty interesting to browse and look at.
I don't think it matters if there's a single one of the required drawings for a challenge, such as post #5255462, for the purpose of the tag, as long as the challenge itself requires multiple. It's not uncommon for artists to post these separately anyway, and someone searching for this content probably does not care whether they're in a single post or separate.
As a side note, if shirt_cut_(meme) is a meme then all the others are too, and it would make more sense to imply multiple_drawing_challenge instead rather than this specific one directly, so I'm also attaching an alias back to the real name of the challenge rather than the forced name we have now just to automatically imply it to meme.
Not sure if multiple_drawing_challenge rolls off the tongue well enough, so if someone has a better name feel free to suggest it.
There's also multiple_style_parody but not sure if it makes sense to include this tag in these implications. Thoughts?