Rend Armor, is it pointless?

I feel like I only see people trashing Rend Armor as pointless. I'm wondering if it's worth anything to me at this point? I'm farming T10 to w9300 and T11 to 7100. I had held off to save free ups in tourney's but don't really need to worry about that at this point. I'm consistently finishing 5th-10th in Chanps. What do y'all think?