Wisps are the miners builders and tree summoners. They cannot attack. Whenever who build a ancient of any kind like ancient of war or ancient protector you will lose the wisp. Archers are a basic ranged unit. They attack average speed and hase pretty good damage. Huntresses are melee units that attack fast and does alright damage. Their weapon can bounce of the unit they hit and hit the next couple. Ballistas are the night elf siege unit. It does the most damage of all the other sieges. Dryads are fast attacking units with not that good damge. Massing them is good, they also have a skill that slows the unit they hit. Druid of the Claws are a unit that attacks slow but good damage. They have a skill where it makess all alllies around damage go up. Their main skill is bear form which is where they turn into a bear and do more damage Hippogryphs are flying birds that can only attack air but they attack fast and do good damage so you might want to consider them. Hyppogryph Rider is an Archer on a hippogryph. It is pretty good because it can attack land and air and attacks fast. Druid of the Talon is used for anti air. It attacks air and ground but can change into a bird and attack air only and do very good damage to it. Chimaera can only attack ground but does extreamly good damage. It can learn a skill which attacks buildings and stays back far enogh from the defending towers.
Night Elf Heroes
The Keeper of the Grove is a hero who attacks both air and ground and is ranged. Its spells are making tree come alive to help attack. The major one is tranquility which make rin come down healing you and your allies. The priestess of the Moon is a great unit that is ranged and attacks air and ground. The spell that most people get the priestess is Starfall. Starfall makes stars come from the sky for 45 seconds to hit your enemy and each time it hits your enemy it does 50 damage. The Demon Hunter is a huge person who uses two double sided blades. It is a melee unit who can only attack ground but does the most damage out of the Night Elf heroes. Its main spell is Metamorphism. This changes the Demon Hunter into a big demon who wastes your enemys.
Summonable Units
Ents are trees that are summonded by Keeper of the grove. They don't do much damage but they attack fast.