I really like viking and thunder or viking and smoky, and hornet with firebird or freeze. I like thunder best but its a lot more expensive to upgrade. i do pretty good with smoky and firebird, not as good with the freeze though. I dont like the railgun, I dont know why but i can never get a kill with it. I like the hornet and ricochet or firebird/freeze. i dont really like wasp. mammoth is OK. So what should i upgrade, I use different play styles depending on what i want to do. I am good with all of them but best with balanced setups like viking and thunder/smoky, or hornet and thunder/smokey. Should i upgrade the viking or hornet or should i upgrade the smoky or ricochet or another turret. So basically what would give me the most overall gain and futureproofness. Thank you for your time.

I am going to buy 11000 crystals( times 2 because of double crystals card so 22000, plus the 4000 i already have so 26000) but i dont know what to upgrade. I like the shaft but i read that it is bad for higher levels. I really like the viking, i pair it up with the thunder and sometimes ricochet. Should i upgrade the viking. Or is there something else thats better to upgrade. I like to have range because i play on Kungur a lot. but firebird or freeze would be OK for moon silence. Whatever is best i will choose because i can adapt my play style a little bit. I would like something that is balanced but if i cant afford it that is OK. Thank You for your time.