Frost Psynergy series

Frost, Tundra, and Glacier are a series of Mercury attack Psynergy featured in both games. It is available to the Water Seer Class series and the Mariner Class series. Hence, Mia and Piers can use this series of Psynergy.



Psynergy spells
Frost: “Attack with frigid blasts.”: This costs 5 Psynergy Points, has a base power of 20, and has a range of three targets. Some shards of ice are dropped onto the enemy. This is also a Psynergy that can be used in the field; it can be used to freeze tiny puddles of water to make them grow into tall, icy pillars that one can hop onto. It is available at level 2 for Mia and 1 for Piers.

Tundra: “Attack with frigid blasts.”: This costs 8 Psynergy Points, has a base power of 45, and has a range of three targets. More shards of ice are dropped onto the enemy. It is available at level 9 for Mia and 8 for Piers.

Glacier: “Attack with frigid blasts.”: This costs 15 Psynergy Points, has a base power of 100, and has a range of three targets. Many shards of ice are dropped onto the enemy. It is available at level 24 for both Mercury Adepts.

Analysis
Initially, for Mia, Frost is strictly inferior to Ice in battle, in that both are available when she joins and both cost 5 PP, though the latter does more damage. However, due to the large level requirement for Ice Missile, Glacier is probably going to be Mia's strongest multi-target Psynergy in the first game, which makes it quite useful. Piers has a larger pool of offensive Psynergies to to choose from overall, and hence it is more up to player preferences as to which of those to use, though Glacier is still going to be the most powerful muti-target Psynergy for much of the game.

Frost as a utility Psynergy
Frost can be used to freeze puddles of water into frozen ice pillars. This is integral to solving many puzzles in both games. In both games, there also exists a Frost Jewel which grants the Psynergy to any character.