MyEtherWallet supports both Ethereum ETH and Ethereum ETC blockchains.
MyEtherWallet is a web wallet at https://www.myetherwallet.com/. Please double check website address, it should be exactly as it written above and browser should display URl as a secure one. For example for Chrome it will be:
You can switch by blockchain by selecting it in top left corner, you need to switch to ETC (epool.io)
Click "Send Ether & Tokens" and follow app instructions to import your Private Key, you can use a raw private key exported from another wallet, use Trezor, Ledger or other ways to import it.