So, I was thinking of this power after reading it and it occurred to me that this power has a very good chance of just continuing to grow forever into essentially another Eye of Terror. Why would anyone ever be allowed to use this???
Granted there is a 16% chance it winks out of existance in 2 rounds. There is also a 4% chance that after 2 rounds it is 6m in diameter. After that, odds are it is going to keep growing to infinity. Overall for each round it has a 40% chance of shinking 1m, 40% to grow 1m, and 20% to grow 2m. So it has a 60% chance to grow and a 40% to shrink, this means if it can get to a reasonable size it will almost certainly grow to infinity.
Am I thinking about this wrong???
It does take a rank 5 librarian to do this, but they can do it every round as a full action if they want. Is the power broken or working as intended?