My Clan is in Tier 1, and in previous CvC's we'd be able to obtain up to 3 Ancient Shards, 2 Arena Refills and I believe 11 3* Chickens. Looking at the rewards starting tomorrow its down to 1 Ancient Shard, 1 Arena Refill and 9 3* Chickens. I could be wrong on the 3* Chickens, but the Ancient Shards and Arena Refills were definitely 3 and 2. I don't understand why they'd reduce the rewards, especially for the Tier that arguably needs them more to progress.