Versatility - I can print 5 copies each of two cards that fit a session’s theme, or 3 of one, 2 of another, and 1 of another. I can give these out utterly at random from the whole deck (or mildly curated set) one per PC and let them keep what they have a secret from me till they use it. PCs love dropping bombs on the GM and this is a fun way to keep me on my toes.
Variety - you really covered all the bases I could think of with these. A really well rounded range of types of effect, simplicity of effect, and degree of effect. And they aren’t all combat! It’s nice to see cards like “Muh Loot” “Not You” and “Can’t Fool Me” and plenty of others which have well rounded uses.
Style - Consistent size, art, and fonts that dovetail well with the ICRPG aesthetic and themselves. Appreciate the sense of fun that went into the names of cards and the doodles.
Simplicity of Language - without opening up the door to a bunch of rules-lawyering, these state their effect clearly and directly.
Blanks - to make my own, should a very specific need arise.
Respecting Creator Wishes - with that For Use With ICRPG Core logo prominently displayed
Proofread - Last but never least.
Going to repost all that as a review, BTW. Once DTRPG’s 24 hour waiting period is up, Lol.