Myriad is a cryptocurrency that supports 5 algorithms, for ASIC, GPU and CPU mining. Currently these algorithms consist of SHA256d, Scrypt, Myr-Groestl, Argon2d and Yescrypt. Myriad's multi-algorithm approach offers 51% resistance to attacks, as a variety of different hardware would be needed to find 51% of the blocks. Merge mining is available on SHA256d and Scrypt algorithms, allowing Myriad to mine hashrates used by coins leveraging these algorithms (BTC, LTC). More information can be found at http://myriadcoin.org/.