I'm not fussy whether it makes cards truly uncrackable, or gets a name change to be more accurate to what it actualy does, but getting a gem that sounds like it makes cards unbreakable when it only adds resistance to it feels bad. Either make it ACTUALY uncrackable, or change the name to be more accurate.
#Either make Uncrackable gem truly make cards Uncrackable, or rename it to Crack Resist or something.
ashen barn
sweet field
My Vote is for Truly Uncrackable, otherwise it's kind of a waste of a Gem Slot
Like if you're at the point you can draw (and use) so many cards that they start cracking, you probably are safe to end the term.
However, if you don't want to fight the trickster, and put a gem on that thing, you probably don't want it to give you a bunch of reuses, but an actual gateway to infinite combos.
sage root
I think Truly Uncrackable may be too overpowered with certain combos though. Slapping that on certain buffs may make a run overpowered early on. For example, if I got lucky early on with that and removed destroy from any of the various one time buff items, I could scale Growth, Greed, Luck, Duration to max in one turn. Or I could throw it on a bracelet and kill everything easily excluding bosses with timers.
That being said, I would love to see a better middle ground for this.