Dear Square, can you please make it possible to buy the Archbishop Thordan card for 99 Heavens' Ward Helm Fragments?

I understand it's supposed to be rare, but having done Minstrel's Ballad: Thordan's Reign 106(!!!) times as of this post and having not gotten a single card drop is beyond frustrating. Moreso since the knight phase ensures even the fastest runs take about 4 minutes a pop (and yes, I have indeed spent more than 7 hours of active game time for one card, and have no idea how many more hours it will take.)

99 Helm Fragments would still take a significant amount of time to get (>6.5 hours) so it's not like the card would feel common, it just would take it from ridiculous to exhausting.