1x Western Worldstone Shard (Act 1)
1x Eastern Worldstone Shard (Act 2)
1x Southern Worldstone Shard (Act 3)
1x Deep Worldstone Shard (Act 4)
1x Northern Worldstone Shard (Act 5)

These consumables help you reach the new Colossal Ancient fight and acquire powerful Unique Jewels for your character. Farming basic Terror Zones allows you to acquire Worldstone Shards, which in turn allow you to terrorize entire Acts for a time. Terrorized Act Bosses have a chance to drop Colossal Ancient Statues, and combining all 5 in the Horadric Cube allows you to open a Red Portal to the new pinnacle encounter.