Well you guys want to summon the person that you like and you got the person that you want. In short, same catalyst same person.
It makes me wonder why they would even try to summon Muramasa, technically it isn't even Shirou, just someone who possessed the body of the person you liked...
FINALLY added to Hilarious in Hindsight after Muramasa was revealed to be the 2021 New Year's Servant.
IT'S TIME FOR THE MURAMASA PICK-UP!!!BANGWha-?!If I add Avalon to that, we will surely summon him.Illya: Without a doubt, we're gonna be pulling the strongest Onii-chan! To those who have a connection with Shirou-oniichan, give us a catalyst!!What's up with the two of you all of a sudden!?Looks good.Shirou-oniichan!?What do you think about this pendant, Saber?Oi, listen to me!Saber: It's here... the golden orbs and summon animation!!