Splinterlands is really fun. It's not like other blockchain projects where you just play because you want to try something on a blockchain. Well done.
The only drawback it has on non-blockchain games is the fact that battles are not interactive. You can't do something during the battle, just watch.
I know this would be very hard to implement, since players already value cards based on their stats, and changing how cards play will inevitably the change the value of the cards relative to each another, but this would really make splinterlands the perfect dapp. Better go through that before it goes viral (after this crazy bear market).