Thank you for opening such a thread!
1- Mind controllers need a pet
2- Gravity needs a boost. Replacing Dimension Shift with a useful power would do it.
3- Hot feet costs too much endurance for a weak effect.
4- Animate Stone had it's recharge/duration reduced (good) but not it's cost. This puts an undue strain on earth controllers.
5- Propel does not do enough damage/effect.
6- Flash Freeze... just not worthwhile.
Thanks for listening (I hope).