Burnt all of my quartz and tickets on this event with good results (about 400 all added up) getting all the servants except Yuri archers.
My notable spooks were Tamamo Caster and Nightingale. Both times was hoping for Squirtle and was like "Huh?! Is rate up truly a lie?" Ended up getting Squirtle after I spent all the quartz and tickets. First roll after completing the second part of the event and getting those quartz. Best day ever