So seeing the new Ivaldi of the Nordic Smiths (YGOrg Translation) may have been initially disappointing until you saw their two new powerful Relics
X #101 Charmander #102 Charmeleon #103 Charizard #SH1 Drifloon #SH2 Duskull #SH3 Voltorb 25/100 Other Scizor Cards Scizor 100 HP Honeycomb Defender If Scizor has 6 or more damage counters on it, any damage done to Scizor by attacks is reduced by 40 (after applying Weakness and Resistance)
The other way to reduce the cooldown and open packs faster is by using Poke Gold, which you can purchase in the in-game store
Paying four life seems a bit high for a single card, but the Library allowed you to effectively see into your future by a full two turns
And call me a sucker for nostalgia, but damn it sure is nice to open a pack and see the old border and fantastic retro artwork of Benalish Infantry
In other words, the significance of this card is that you can add a large number of curse tokens at once while increasing the ability value, but since there are various ways to add curse tokens other than this card, it doesn't have much meaning