Any good place to farm Ortapolymer up to date?

[segadrm10]

white beast S is the best place in i think

[danny_o]

Sacred stream works for me...but I get massive lag attacks due to some thing stupid with the way robots explode. You can also nab a Gatranata (9* Yohmei Spear) board, and those have been going for 400k, with low elements, on the Xbox market. Plus, that spear has massive quantities of PP, unless you already have a Gekitsnata, which are easier to find than the 9* versions.