You can purchase FIRSTBLOOD from these places
Go to HitBTC
The most advanced cryptocurrency exchange to buy and sell Bitcoin, Ethereum, Litecoin, Monero, ZCash, DigitalNote, Ardor.
Go to Gatecoin
Gatecoin is a bitcoin and ethereum token exchange based in Hong Kong. Trade BTC and ETH worldwide with USD, EUR and HKD.
Go to Livecoin
Go to Liqui
Go to OkEx