I just recently pulled warca which I’m ok with but I also have a super epic with assisted wave subzeratops I believe is his name. Would it be a good idea to run them both in a water starting lineup? Any answers are greatly appreciated 
Yes, I have a pvp lineup that does that.
assisted water is powerful but with warca there is the assisted water lineup you can go with or the one on one / nova blast set up. I would try something like this - warca frostrider gearcroc subzerarops. Use one on one with frost rider then switch places and have a water monster with purify come in then use stealth with warca and when the enemy team wakes up they will only have 80 seconds roughly to kill warca before he can use nova blast. If you don’t get one on one off or the enemy gets purified then you can just use assisted water moveset