Zardnaar
Legend
You absolutely can. It just requires actual playtesting, not the performative nonsense that WotC (and Paizo!) have been billing as "playtesting".
I'm not doing that, so...not a concern.
That is far, far from the best designers can do. That's straight-up pretending designers are somehow utterly powerless, which is ridiculous. I know you don't actually think designers are powerless. Otherwise you wouldn't complain about design you think is bad, like silvery barbs.
That any edition has, despite never even trying to do so, is proof enough that it is possible.
Silvery barbs is bad. Its somewhere between overpowered to broken, slows down the game and sucks the fun out of it for the DM (you will never crit again sorta) and players are gonna hate having it used on them.
The player who asked to use it likes using chromatic orb. I could have just said I'll use it as will if I let it into the game.
Its a stupid spell.