Path of Exile 2: How to Get Rapid Casting (Arcane Tempo) Support Gem

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Valencia

Guide Curator at GladiatorBoost

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What Is Rapid Casting?

• Rapid Casting (previously called Arcane Tempo) is a Support Gem that increases your spell casting speed.

• It comes in three tiers:

  • Rapid Casting I – Grants +15% cast speed.

  • Rapid Casting II – Grants +20% cast speed.

  • Rapid Casting III – Grants +10% cast speed per different spell recently cast, rewarding varied casting styles.

This gem is especially valuable for builds that rely on burst spellcasting or chaining multiple abilities together.

How to Unlock Rapid Casting

1. Acquire an Uncut Support Gem – These serve as the base for engraving support skills.

2. Use the Gemcutting System – At any Gemcutting interface, select your uncut gem.

3. Engrave Rapid Casting – Choose Rapid Casting from the available list and engrave it to create Rapid Casting I.

4. Progress to Higher Tiers – By using higher-level uncut gems and advancing further in the game, you can unlock Rapid Casting II and III.

Why Rapid Casting Matters

• Speeds up rotations: Makes long or multi-hit spells more fluid.

• Synergizes with hybrids: Pairs perfectly with builds that juggle multiple spells, especially with Rapid Casting III’s stacking effect.

• Boosts survivability: Faster casting means quicker shields, heals, or control abilities when under pressure.

Summary Table

GladiatorBoost Spotlight

Looking to maximize your spellcasting build? GladiatorBoost’s Path of Exile 2 Boosting services can help with gem engraving, farming uncut support gems, and optimizing setups—so your character gets the most out of Rapid Casting from the start.