So, for the card game I mentioned (this isn't an omake but random fun ramblings which may turn into one) which is actually spelled
wixoss ![Stick Out Tongue :p :p](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
(apparently pronounced wee-kross), I'm thinking:
Blue: spell support, drawing cards and making your opponent discard
Maybe Homura? Blue seems to be about information control, and with her time knowledge and timestop she has that. (Trying to avoid the obvious Sayaka=BLUEW! association and actually look at the color specialties.)
Green: manipulation of the playing field, increasing your power, banishing opponent's powerful cards
Mami? She has insane fire power, and both muskets and ribbons are pretty good at field manipulation.
Red: direct attacks on opponent's health, banishing weak cards, gaining power during your turn.
...Yeah, definitely Kyoko, with her 'survival of the fittest' mentality.
Black: power reduction, sending cards to the trash, recovering cards from trash.
Sayaka maybe? Her healing powers practically act as "resurrection" (from should-be-fatal or at least severe injuries).
So that leaves Madoka for:
White: deck manipulation, defensive power, attack prevention, returning cards to opp's hand, field manipulation
Actually, the deck scrying thing would work for Oriko, and defense sounds like Sayaka... Actually no, Sayaka doesn't do defense (I'm thinking of her color being blue, as in defense, in the TCG Weiss Schwarz). She rushes in there like a
n idiot hero. >.>
Alternately, Madoka could be 'resurrection' and thus Black, for obvious reasons.