Read moreI hadn't even thought to consider this a currency to be honest. I'm the designer behind these Slayer's Path additions. These Slayer Path additions replace during Radiant Season what would have been Talent Trees in previous Escalation seasons.
The 'Fragments of Times Past' which are the 'currency' for these nodes are functionally the same thing as if we'd called it 'Charged Radiant Aether' in my mind. It is earned by killing Primal Behemoths that spawn in the Hunting Grounds, and is spent in this seasonal Slayer's Path addition.
Fragments of Times Past are not affected by Slayers Club, nor purchaseable in any way. Any Behemoth on any island starting on Brightwood and beyond has a 50% chance of being a Primal Behemoth, which will drop these Fragments.
Edit for more info: I should have surfaced this earlier, but as I said, I hadn't even thought of it as a currency, but as just the next season's Charged Aether, which is something we've done for every elemental s...
Thanks for the info, Ahrelia! Super helpful :D