What about masternodes who give 300% ROI and more like.
Goa coin
Cerberus
Artax
Num coin
Galactrum
Sparks
Any idea if those ROI are real?
Here's the usual scenario for high ROI coins. Price starts at $1 with 2500% ROI, so you buy 100 coins for $100. Two weeks later after vigorously staking your coins, you now have 252 coins, but the coin's price is now $0.10, so your coins are only worth $25.2. You decide to try to wait it out and stake it some more, so you wait another two weeks. Now you have 727 coins, but the price has dropped to $0.005, so now your coins are only worth $3.64. Frustrated, you try to sell your coins, but everytime you place a sell order, someone undercuts your sell orders. So finally you sell into the highest buy order, which is for $0.0005, and you wind up with $0.364 USD for your trouble (well, minus the trading fees).
Sounds like a clear winner to me!
So what I would recommend... is some coins that still have value. Try checking out BITG, DEV, PAC, Phore, Straks, Crown. You won't get 2500% returns, but you should make some return on your investment.