Isn't the aim of HERO to remove the middleman and wanting to keep the money/tokens with the users. Wagerr on the other hand takes a fee off the winnings bets. Unikorn I think is like a bookmaker and you bet against them. I like the Hero way of keeping the money/tokens with the users and not giving it to the house.
The most straightforward way to “be the house” is by operating an Oracle Masternode, a network component (or consensus agent) that earns half of Wagerr’s service fees for performing bookkeeping services. Oracle investors collect fees and systematically win, just like traditional bookkeepers.