73 red reapers back to back before I decided to call it a day.
In the last battle you can see how even with 6 cards with triple coin counts I wasn’t able to take him out before he was able to attack. The tirajisu strategy was definitely the way to go and a wild clock lancer would have been helpful to prevent him from attacking.
It took about 8 battles for each step in the number of coin counts necessary to take him out.