Agreed. I like the idea of
![Water :water](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/water18x18.png)
= Steam, but fire and water have no synergies. Maybe
![Water :water](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/water18x18.png)
could represent steam, because they already have some synergy.
Also, I think these would be limited to six, and not called pillars. ("totem") maybe?
These would upgrade the same way pillars upgrade to towers, right?