You can only work with what you get. Sure - I don´t expect to jump around in high classes after only 3 month. I love to work my way up - that´s the essence for me to play such games. I´m level 46 and could even fight Hydra, Doomtower a.s.o. But with what? (no - isn´t a question now which champs to use. it´s about the possibility to upgrade champs without the needed stuff which you can´t get/reach). And - no - it is NOT possible to get the higher stage stuff within these 3 days an event is running - not for a low payer or ftp. 90% of the events I might get to max. 3rd stage. 3700 or 6000 points for getting the whole event done or getting only the chicken /shards on the lower stages - a sweet dream but nothing more. The stuff to upgrade the champs is too far up (demanding an amount of points you can´t achieve as a low payer or ftp).
Yes - them promo codes. I got Chonoru and that´s all I could get. Every other code for the other champs (Lady Qilen, Deacon, Mordercai ...) didn´t work - despite what HellHades and other tell. "You already used a code" - after 24h, 48h, 72h ... And the Arbiter event was running at the same time (which I completed) and I got only the small stuff. Wukong after the 1st week (Don´t like him. But is the only leggi I´ve got - I have to work with him). But okay - so collect shards and you will get a leggi sooner or later. Sure - you get rare champs with the few blue shards you get SOMETIMES. And somehow this random generator is heavy in love with bannerlords/Sacred Order.
I only would like to have a decent team I can use to complete the daily stuff and get further up in the dungeons than stage 6. Not to compete with high ranking players - maybe in 2-3 years.
Yep - I´m already at nightmare (3. Catacombs). Why? Cause to get jewels for shards to get the mercy system to react. You want a shovel if you need one and not a spoon instead.
Upgrading champs? Get a uncommon to level 5. Another 4 as well (a lot of food needed - sarcasm on - but the green shards are a good help there - sarcasm off). But that´s the only way to achieve it. Unless - $$$$$$$$$. Every rare/epic is precious for low payers/ftp. For not to say "you also need a decent team for every faction dungeon. And double champs for the faction guardians." So - whom to sacrifice - you need them for other things. So - taking the droprates a.s.o. in account it takes ages to get only 1 to the required level to be used to upgrade only your starting champ (Kael). And FIVE to the required level to get the boy on level 6 ... It takes you more than 2 months. Meanwhile you collect mainly crap through the shards. Which you can´t dump as you need these to get at least something done.
And yes - I did read a lot of advice to "how to play". Best was the one "I don´t care what you´re crying about - get the 5 rares you get through campains (spirithost to diabolist. Oh! After 2 month and thousands of energy I´ve finally got the last missing - "Warmaiden"). But hey - he said "they are easy to get for everyone - so stop whining around". Yep - you can´t get rid of the impression that "such helps/advices are written by cashers who lost (if ever had) any/every realistic view on what can be achieved." And again - "it´s different for a low payer/ftp than to a ptw." A ftp really seems to be only the prey for the ptw to bash around on and make points on them." (as someone already mentioned here). I´m happy for every advice and help - no doubt - but it should be based on realistic possibilities.
I did spend some money on this game (otherwise I wouldn´t be in nightmare campaign). But that´s it for the time being. ´til they realize that the main bulk of players are low spenders/ftp. "A strike of the ftp ..." Yep - funny - sure. But to laugh about such an comment isn´t very nice - especially not for an moderator.
A lot to unpack here. This game is a marathon, not a sprint - especially if F2P/low spend.
So, it's certainly possible to do get the top rewards in dungeon/training tournaments and events as an F2P/low spend, if not trivial at some point. However, this requires you to be later on in the game and able to clear later stage dungeons, I am not sure why you would think to the contrary. Stage 20 is where you need to be.
Being 3 months/level 46 means you are still VERY early, especially if you're having trouble with getting down how to get a level 60 champ done in a fairly short amount of time. Ranking up your first six star shouldn't be too bad, but requires you to get your starter to 50+, best gear on them and farming the highest 3rd or 6th stage you can with food champs. In your case that would be 12-3 Brutal since you'll want that overlap of silver and XP.
New codes that reward champs are limited to one per player and unfortunately you chose one that is on the lower side of usefulness, whereas Deacon and to a lesser extent Mordecai are great. Regardless, Sun Wukong is a very good free champion.
Don't do Nightmare campaign. It's energy inefficient and you are incredibly unlikely to progress your account doing that. You'd be better off making a team of 60s, farming the highest Dragon stage you can and getting your champions geared out better. That would do you much better long term. Getting stuck on the Nightmare campaign grind is one of the ineffiencies that just murders account growth.
Lastly, I know the comment you're referring to and the gripe you shoehorned in (and had really nothing to do with the bulk of your post)...please learn to take a joke. Though we may be moderators, strangely we are not just humorless automatons.