New units. Their discussion and selection of upgrades.

My choice:
Dryads – for removing enchantments, they’ve saved me many times, and they’re also more beautiful…
Dancing with the Wind – a really powerful attack and good defense.
Forest Archers – Master Archers – I can’t choose, but I’ll go with the first one, the damage is just terrifying!
High Druids – attacking creatures with magic is often better than the hero’s own attack…
Battle Unicorns – if based on abilities, and the Light Unicorns – based on appearance…
Wild Ents – for their excellent attack.
Emerald Dragons – they’re just beautiful and strong.