Spire Psynergy series

Spire, Clay Spire, and Stone Spire are a series of Venus attack Psynergy featured in both games. It is available to the Squire Class series (Squire onwards) and the Brute Class series (Savage onwards). Hence, Isaac, Felix, Jenna, and Garet can use this series of Psynergy.

Psynergy spells
Spire: “Attack with an earthen spire.”: This costs 5 Psynergy Points, has a base power of 40 onwards, and has a range of one targets. A triangular rock falls onto the enemy and shatters. It is available at level 6.

Clay Spire: “Attack with an earthen spire.”: This costs 13 Psynergy Points, has a base power of 85, and has a range of three targets. A group of three larger triangular rocks fall onto the enemies and shatter. It is available at level 20.

Stone Spire: “Attack with an earthen spire.”: This costs 22 Psynergy Points, has a base power of 160, and has a range of three targets. A group of five larger triangular rocks fall onto the enemies and shatter. It is available at level 42.

Analysis
Spire is acquired early and functions effectively as a “placeholder” for the more powerful Psynergy technique Ragnarok at level 14. Spire’s power of 40 against one target, for a PP cost of 5, is more than Earthquake’s power of 35 for a PP cost of 7, though Spire is learned 2 levels later and Earthquake damages up to 5 targets. Spire is best used against stronger enemies without allies. Clay Spire highly useful when first acquired, and so is Stone Spire. Stone Spire is considered a cheaper alternative to Grand Gaia.