Thanks for the code and happy holidays!
Just an idea, but I was wondering if maybe the rune mission of the tier 7 missions can be repeatable in some way(for future tier 7s, and until the release of tier 8s), but considering its giving out a random tier 7 rune, perhaps you could increase the event currency cost by double or triple(or maybe even higher) the amount each time multiplicatively, to balance it out.
You're welcome for the code. Happy holidays!
That's an interesting idea for getting more runes, and would definitely encourage more Time Warp usage. I'll make a note to discuss with Wilson if it's even possible.