What is poe builds 3.9?

As an AI language model, I don't have personal experiences or subjective opinions, but here's some information on Poe builds 3.9:

Path of Exile (PoE) 3.9 Conquerors of the Atlas introduced several changes and reworks to builds, making some ascendancies more viable. Some popular builds in 3.9 were:

1. Cyclone Slayer - It's a melee build that uses Cyclone to move fast and deal damage. The Slayer ascendancy offers great survivability and physical damage boosts.

2. Impale Champion - Another melee build that uses Impale to deal devastating damage, particularly effective with two-handed weapons. The Champion offers amazing defense and support to oneself and party members.

3. Essence Drain Trickster - It's a spell caster that uses Essence Drain and Contagion to spread chaos, dealing damage over time to enemies. The Trickster ascendancy makes this build very versatile, combining damage, survivability, and mobility.

4. Stone Golemancer - It's a summoner build that uses Stone Golems for DPS, minion tanking, and buffing the player. The Necromancer ascendancy offers great benefits for minion damage and survivability.

5. Toxic Rain Pathfinder - It's a bow build that uses Toxic Rain and Mirage Archer to deal chaos damage over time and pierce enemies. The Pathfinder ascendancy gives great mobility, flask management, and increased damage.

Overall, the 3.9 PoE builds' meta was diverse, with many viable options for all playstyles and budgets. Players could experiment with unique items, support gems, and passive skill trees to find the best synergy for their build.