Mo & Krill trophy collector buy or skip

Hi,

What do you guys think about Trophy Collector for Mo & Krill?

Do you buy it, and if yes, why do you think it’s worth it?
If not, what makes you skip it?

For me it feels kinda weird to spend 4k souls on something that doesn’t give you stats right away, so you don’t actually get stronger when you pick it up. I get that it fits the whole M&K identity, but aren’t other items like Warp Stone or back then Torment or Scourge just more value?