So I like the head canon that Regulus' Patronus is a black dog like Sirius' but I also like the one where his patronus is a black cat so here is my take.
His patronus is just a giant fucking black panther.
Sorry for the late update I was in a play this weekend
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Marauder headcanons (and others)
FanfictionThis is just a bunch of headcanons but mostly Marauder ones because they are the best
