[BTD6] Dark Castle CHIMPS Black Border w/ Silas & Ray of Doom

ray of slop continued to get carried by $2000 upgrade [Version 56.3] Silas and Coldchain spam is basically the wheelchair strategy for all expert maps and it is super easy to do so. Saving up to Ray of Doom in Dark Castle is a joke, but at least it looks better than Perma-slop and Avatar of Slop that most people used for guides. 0:00 early game 6:09 mid game 12:15 late game