Earthen Ramparts

At the Elementalist's summoning, mighty earthen ram-
-parts rise up about their allies.
Until your next Start of Turn sub-phase, the target
friendly unit gains a 5+ Ward save against any wou-
-nds suffered and counts as being behind a defend-
-ed low linear obstacle if charged. However, whilst
this spell is in play the target unit cannot march or
charge.
"I can't protect everyone. But those I can, I will!"