about 3 years ago - Kaldorei - Direct link
There is a huge rebalance of the components distribution, way of acquisition (like alchemy recipe etc...).

Crystal merging is allowing you to merge up to 5 crystals for a chance to get a crystal with +1 level (and/or a better modifier) up to +5 so by sacrificing a lot of crystals you can get a lot of additional power in your build with +5 crystals