It seems like I encountered a int_max dmg bug with this tower setup.
i got bored after a while and sold towers and made it to 4777 / 4774 Ronald kills.
I dont know how to upload a replay but I can upload the full game on youtube if anyone is interested.
https://plays.tv/video/5dc32b50d70cc07486/4777-4774-ronald-kills-element-td
https://images-ext-1.discordapp.net/external/MUaUyT8Du_sAgdeFhfx2eCHeGHbGcmfCMEMOMuZCXPg/https/i.imgur.com/GTVxKfL.jpg?width=1202&height=677