Don't be so mean guys I'm just newbie to the whole mining thing just saw somewhere on aliexpress ltc miners and I thought they can mine all scrypt currencies... so I guess I need to build gpu rig ... thank you for the replies..
LTC miners CAN mine all Scrypt currencies. However, Ethereum's Proof-of-Work is Ethash, which by design is ASIC-resistant.
There are no ASICs for Ethash or Ethereum for that matter. Ethereum can only be mined by GPU/CPU.