@BPRDHB you're one of the lucky ones then that crafted beforehand. I had 4 valkrie and actually recycled one at that time(when I recycled close to 60% of my collection to craft some legendary zombies)
I just this week crafted two nurse gargs and it took me so long to do it because I kept thinking that I should have all 4 of both nurse and mixedup gravedigger for the same amount of sparks as it cost me for 2.
When I started crafting hardcore, what I decided was to go from bottom up. Rares I never bothered with since eventually it will drop.
Superrare and event cards that are down to final price(1000 not 2000 gems) were the first cards for me to craft. And I would usually do 3 or the full set, unless I know that I will never have that many in a deck. Like shamrocket for example. I have 2 and that is good enough for me. If I need all four in a game that probably won't be a long game.
Now I dabble with cards(mostly plants now) that I want but don't have. And there's plenty of event cards even if I don't think that all of them are great