I am a bit of a completionist, I like seeing achievements at 100%. But why does achievements have to be boring? Achievements should be challenging. Playing a card 100 times is not a challenge. It’s boring and very unimaginative. Instead of just making it repetitive, rather make it extremely difficult. Where you have to create a deck or situation to complete it. For example, instead of “Deal 200 damage with aftershocks”, make it “deal 20 with a single aftershocks”. Or even 40 with a single one. THAT would be an achievement to be proud of. The point is, you have to think outside the box on how to achieve this.