Lots of good advice and strategies in this thread.
I have 3 x TC20 and 1 x TC19; not planning to take the last one to 20, unless I somehow stop needing feeder heroes, which I don’t see happening.
At one point my biggest need for meaningful growth was to get more 5*, and I’m very C2P and so the TC20s are my primary source for 5*. Had a fairly long (month or 2?) 5* dry spell running 2 TC20 besides getting a duplicate Magni that I had no materials for, and so I ramped up to running 3 TC20s. Not long after that the RNG pendulum swung the other way, and I got Sartana, Obakan, Kadilen and Marjana within probably a week or 2.
So then, the need suddenly had shifted to feeder heroes, having multiple 5* to level up; I ramped down to a single TC20 (still need a yellow 5* especially, so I don’t want to go down to none), which is where I still am.
The 3 non-20 camps, I am switching once or twice a day typically, between 11 and 2. I do also like 19 a lot, which was in the mix periodically for a while, in short bursts, until I finally ran out of my stockpile of rugged clothes.
In this process I’ve also realized that currently all the heroes I’m working on leveling up, have maxed specials - or even when they weren’t, the 5* do not need coddling with special feeding techniques of 1* etc. to get their special to 8/8 easily enough by 3/70, usually a lot earlier even. So for that reason, I’m now purposely avoiding 1, 3 and 19, so that if I need to work on a fresh 3* or 4* again, I will have the materials on hand to train a lot of 1* quickly, just for the purpose of maximizing their chance of getting the special to 8/8 as early as possible.
By the way while 1 and 3 are inferior to 19 in pretty much every way, I find myself sometimes still using them when out of rugged clothes for 19… 19 is just so very, very fast!
On farming… ever since I started the TC20s, it’s been 8-7 the vast majority of the time. While some of the Season 2 stages give a lot of recruits, backpacks and rugged clothes, the energy cost makes it too high. So 8-7 it still is…