Because heaven forbid that any deck have a natural counter...
I kid, but seriously, the ability is 3
![Fire :fire](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/fire18x18.png)
per turn, so it's rather quanta heavy to keep going all the time. With a deck that has
![Fire :fire](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/fire18x18.png)
, Rain of Fire would shut down ROL/Hope, and Nightfall is mainly used with fractal pests, which would alleviate that problem if you're that concerned about it.