Fortify is a new mechanic for all your played Units. It helps Units dealing with bigger foes and adds more value to Units that sit idly in your hand if all your Fields are occupied.
2 new Dryad Units were added, Dryad Trapper (Common) and Dryad Mother (Uncommon). This brings the total of collectible cards to over 250. The Dryad Trapper turns Fortify into a powerful ability, while the Dryad Mother can help bringing in damage with small Units. This led to a new 40th decktype:
In addition some bugs, mostly layout-related, were fixed and the Dryad Runner was fixed: it now forces card draw for opponent.