[renowner]

Rain trap's elemental augmentation says that it creates ice tiles under the ice enchantment (Kraken.) 
While used with the Kraken enchantment, it did not create any tiles at all.

[Autumn]

This is very likely a placeholder elemental impact effect that was left in, what would apply to traps instead would be this one most likely:


Though in this case Wind would be "Activation range +2, deployment range +2"

[Neus]

Yes, this is a mistake in the elemental impact description, which has been corrected.