Look at the entire tree as a whole. Metal is one of the strongest at the moment. It's a root in a tree with essentially two stuns on it. If the tree only had one cc (like sand does), it wouldn't nearly be as strong as it is now.
Yes, it is a root. Yes, roots are shit, but when you have another stun combo to fall back on after your opponent cleanses or invuls, you're fine.
Yes, it is a root. Yes, roots are shit, but when you have another stun combo to fall back on after your opponent cleanses or invuls, you're fine.