Sorry, but I don't think that this is good advice for most players (especially F2Ps). Maybe I'm missing something, but it sounds like you're advocating burning all of your common and uncommon wildcards in an attempt to complete your playset of common and uncommon cards regardless of whether you plan to play with them in decks with the purpose of maximizing your vault progress. Then you opened 90 packs and only advanced your vault progress by 4%. So, 4% of 1M 2R 3U wildcards. That hardly seems worth it. I think it's a pretty common opinion that the vault (and the gems) are a terrible consolation prize for excess cards. At least they instituted duplicate protection for rares/mythics from packs, but still a bummer for drafted cards and ICRs. I wish they would institute something similar for commons/uncommons or improve the vault reward, but, as it stands, I don't think that vault progress is something that players should be "chasing." I'm a daily 4win/day F2P for a couple of years now and I'm VERY stingy with spending my wc's and I've only managed to amass 300some each of uncommon and common wc's. Are you suggesting that I should burn all of those wc's (which wouldn't even complete a common/uncommon playset of LCI) BEFORE opening any of my packs? Sorry, but that just sounds crazy to me. Maybe this makes sense for whales who are swimming in common/uncommon wildcards and are just trying to maximize rare/mythic wildcard production, but that's not the majority of players.

This makes so much sense and I feel really dumb now

On one hand, I'm glad someone gives insights into the ins and outs of the monetization system. On the other, I think people should just use their wildcards for decks they wanna build. If you don't toss a bunch of money in, common wildcards are actually very valuable to build budget decks. This just makes me feel like arena is a ponzi scheme and we are all suckers for falling for it, so thanks!

Is there a way to not clicking one by one in crafting but to craft all commons and uncommons of particular set?

Reminder of the rates on rare wildcards here (mythics don't matter as much usually): Common -> rare at a rate of 500:1. Uncommon -> Rare at 167:1). Most players are going to want to keep a small stockpile of commons/uncommons for random jank - but also most players are going to end up with excess common/uncommon wildcards over time (or money lol). If you craft playsets of all 113 commons and 93 uncommons in this set you will get about 1.5 vaults more than you would otherwise get when filling out your commons and uncommons. For people who only do partial set completion, you could just craft the commons/uncommons you expect to draft the most. Hope this helps :)

Im a returning player, i played brothers wars and quit, so i Don't have the other sets, i have a almost 20k gold and 7k gems, what should i do? Play premier draft with gold? With gems? I haven't buy the mastery pass yet, im going to wait until completing it, i got a free quick draft token and went 7-2 in MKM but now quick draft doesn't give rank and that's a bummer

Thanks sir!

Is it worth doing that as an f2p player with only a month and a half in the game? I have quite a few wildcards gathered, but definitely not enough to unlock all of them

How am I supposed to have common and uncommon wildcards as a f2p other than Mastery Pass player who mostly plays Historic Brawl? I haven't even collected one copy of every common and uncommon card that can't be opened in packs despite grinding at it for months and months. I have no idea what the point of throwing your wildcards in the garbage for a few rares is.