Please teach me how to use Mudfish for League of legends in Taiwan. I’m from Philippines and Taiwan server is blocked here.
Then, Taiwanese servers are region locked so you have to choose a node in Taiwan or Hong Kong except the following list
Blocked
TW Asia (Taiwan - Google X)
TW Asia (Taiwan - HostingInside 3)
TW Asia (Taiwan - HostingInside 5)
TW Asia (Taiwan - HostingInside 6)
TW Asia (Taiwan - HostingInside 7)
It would okay to use TW Asia (Taiwan - HostingInside 4) but can have little latency.
Or you can try to use TW Asia (Taiwan - Google x) as first node over Advanced mode and choose the other Taiwan node as second one
taiwan hostlinginside 4 is blocked too 
As workaround you should use one of methods at Unsupported Games
But I guess, there are barely available servers to use