I think I posted this before. Big sister Ilya finally showed how to make use of the style of the master counterfeiter, Shirou Emiya, though it'd have made a lot more sense if she used a sniper rifle but I guess this is magical girl themed after all. Aside from the pirated Excalibur defeating the real thing, this fight actually makes a lot of sense. Graveyard of swords is probably the worst place for Saber to fight in, and Archer girl's massive pirated legendary weapon armory is the best way to deal with Saber who can weapon break any legendary weapon with her Excalibur. Could've shown off Saber's T-1000 like regeneration but I guess they expected people to know she has that ability already.