Some people have shared in comments and discord how many fights it’s taken them to get all the battlecrashers. Instead of scattering that data, let’s have a single thread for it. Excluding data from the first day since the drop rates have since changed as per Change to this week's Battlecrasher
Spreadsheet here. Screenshot below:
Short version: The first 9 battlecrashers are fast to get. The tenth hurts.
If anyone has additional data to share, comment below and I’ll add it and update this table. I’ll try to update it regularly.
I am no longer updating this. The numbers are stable enough.