What you do is get your hero as fast as you can, then scout with him, and mass wisps (put em on lumber). When your hero finds the enemy, you send all your wisps outside his base and have them build AoW's (you need at least 6-7 of them). While your hero is scouting you have to upgrade your Tree Of Life once, then research the upgrade that makes ancients move faster.


It worked for quite awhile on 1v1 games for me