Level wise? Yes.
Skills? Yes, though I’m not too sure how long that’ll last considering that the Skill Amounts are now in the millions.
Ranks? Huge no; getting to Yellow+0 from Red+15 is expensive enough because of the sheer amount of Stamina needed; depending if the hero is newer or older, I usually need anywhere from 20k to 40k Stamina to upgrade them, and these are only on Double Drop Days, mind you.
I barely managed to get the last Yellow for my third War/Coliseum team about 3 or so weeks ago, and that was over the course of last year, dedicating each Double Drop Day to a singular character.
The high Stamina costs, and diminishing returns of Badge Bits and Hero Chips.
Even though Double Drop Days are happening much more frequently, which I am grateful for, it kinda feels like I’m not getting as much Badge Bits, since some of my reserves take a big hit, being depleted more often than not, especially with certain badges like the Bunny Ear one (don’t remember the name).
As for Hero Chips, I used to get at least 3 guaranteed in the past. Nowadays, the value is randomized, skewing to the lower side more often than not. I find it kind of disappointing and discouraging some times when a character has 3 places to be farmed in Elite, with each place being farmable 5 times, for a total of being farmable 15 times, only to come up with just 1 Hero Chip.
There’s bad RNG, and then there’s that.
It wouldn’t be so bad, if the requirement for Hero Chips for Red Skills weren’t so high; Red Skills require astronomical amounts of Hero Chips once they reach level 100 and above.