Synergy with Ascendancy is a crucial aspect of POE2 Currency optimizing your Necromancer Spectre Build in Path of Exile 2. The Ascendancy system provides unique enhancements that can significantly amplify the effectiveness of your build, particularly when you're focusing on minions, Spectres, and summoner mechanics. Understanding how your Ascendancy choice synergizes with your build goals can help you maximize your performance in both map farming and boss encounters.

For the Necromancer Ascendancy, you have several key nodes that enhance your minions, and Spectres specifically, as well as your personal survivability and damage output. Here’s how the Necromancer Ascendancy works in synergy with different playstyles and Spectre selections:

1. Key Ascendancy Nodes for Spectre Builds
As a Necromancer, the Ascendancy has several powerful nodes that directly benefit your Spectres, minions, and supporting mechanics. Here are the most impactful Ascendancy nodes for Spectre-based builds:

1.1. Unflinching Army
Bonus: This node gives your minions a huge boost to damage mitigation and defensive layers. Your minions gain additional resistances, which makes them tankier.
Synergy: Ideal for builds that prioritize minion survivability. This works well with Spectres that may otherwise be squishy, such as Flame Sentinels or Solar Guards, by giving them extra tankiness.
1.2. Puppet Master
Bonus: Increases your minions' attack speed and movement speed while also granting them the ability to deal more damage.
Synergy: This node is perfect for clear-speed focused Spectre builds. If you're using Spectres that rely on fast attacks or area-of-effect damage (like Redemption Sentries), Puppet Master will maximize their damage output and speed.
1.3. Mistress of Sacrifice
Bonus: Increases the life and damage of your minions while removing your own life regen. This node gives you a boost to both minion damage and survivability but sacrifices some of your own survival to maximize your minions' strength.
Synergy: Mistress of Sacrifice is a great choice for a high-damage Necromancer build where the goal is to maximize minion damage while relying on minion tanks for defense. This can work well with Spectres that need more damage to be effective, such as Void Golems.
1.4. Flesh Binder
Bonus: This node focuses on minion life and minion regeneration. It grants a significant life boost to your Spectres and zombie minions and can make them much harder to kill.
Synergy: This Ascendancy choice is best for defensive playstyles, where you want to increase the durability of your Spectres, making them more effective in tanking damage. Flesh Binder will synergize well with Spectres that act as your frontline, like Solar Guards or Doom Guards.
2. Synergizing Ascendancy with Spectre Playstyle
Now, let's take a look at how you can choose specific Ascendancy nodes to complement different Spectre playstyles.

2.1. High Clear-Speed Build with AoE Spectres
For high-clear speed and AoE damage, Ascendancy nodes like Puppet Master and Unflinching Army work incredibly well. They boost the attack speed, movement speed, and damage of your Spectres, ensuring that they clear large packs of enemies in a short amount of time. Here are some ideal Spectres for this build:

Redemption Sentries: They deal massive AoE damage, and with Puppet Master, they become even more efficient at clearing mobs.
Flame Sentinels: These Spectres can quickly clear swarms of enemies, benefiting greatly from Puppet Master’s boost to their attack speed.
2.2. Boss-Focused Build with Tanky Minions
For builds focused on endgame bosses, you'll want your Spectres to be tanky and durable, so focusing on Unflinching Army or Flesh Binder can ensure that they survive long enough to deal significant damage. Consider the following:

Solar Guards: Their high durability and good single-target damage make them ideal for bossing. Unflinching Army or Flesh Binder will boost their resistances and life, enabling them to survive even the toughest fights.
Void Golems: With Mistress of Sacrifice, you can boost their damage while ensuring that they stay strong in boss encounters.
2.3. Hybrid Build (Farming + Bossing)
A hybrid build requires balance in both clear-speed farming and bossing capability. Here, you may want to mix different Ascendancy choices for minion damage and minion survivability. This hybrid approach will allow you to adapt to both map farming and tough boss fights.

Spectre Suggestions: Flame Sentinels and Redemption Sentries for fast clear speed, and Solar Guards or Void Golems for tanking and high boss damage.
Ascendancy Choices: Puppet Master for speed and Flesh Binder or Unflinching Army for survivability.
3. Adaptability and Testing
Even with a solid Ascendancy choice, it’s important to test your build and make adjustments based on how your Spectres perform in different situations. Boss encounters, mapping, and even league mechanics can influence which Ascendancy node will be the most effective.

Early Testing: Begin by testing your build on lower-tier maps and adjust your Ascendancy choices as you see what works.
Endgame Scaling: As you progress to endgame content, you may find that some of your Ascendancy nodes need to be adjusted to suit specific bosses or higher-tier maps.
4. Final Thoughts
Choosing the right Ascendancy node and ensuring it synergizes with your Spectre selection is key to maximizing your Necromancer's performance. Whether you focus on damage, survivability, or clear speed, there is a perfect synergy between your Ascendancy choices and the Spectres you summon.

Always test and adapt your build based on your playstyle, goals, and the challenges you face. The versatility of the Necromancer Ascendancy, combined with the adaptability of Spectre selection, allows you to tailor your build for any situation, from fast mapping to POE 2 Currency for sale challenging bosses.