Something like activating Energy Gates or even Reviving Mecha Knights. (I also understand that the difference between an Energy Gate and Spark of Life is about a 3:1 ratio. But at least having it as an option would be nice.)
Though I understand that this could hinder recruited players but I would like to see a use for Sparks of Life for someone like me who has over 250 Sparks of Life and really have nothing to do with them. I rarely die and even when I do die and end up using a Spark of Life, I end up gaining a lot more through just running Arcade than anything else. I even often revive random people I don't know and still end up having more Sparks of Life than what to do with them.
I would like to see there be another use for them even if it's just an option.
they should also be able to be feed to your sprite