Gaia

Gaia (ガイア) is 's down special move in Super Smash Flash 2.

Overview
When performed, Isaac summons a tall rock pillar that rises from the ground. Prior to it rising, a spell circle will appear on the platform directly below him, and the player can use the left and right directional buttons to position it. Isaac can delay the move by keeping the special button pressed, and the pillar will rise once it is released. Opponents that make contact with a rock pillar can be hit multiple times, with the first few hits dealing 2% damage each and the final hit dealing 5% damage for a total of 13% if all hits connect, as well as moderate upward knockback.

Origin
Gaia is a Psynergy Spell from the  series that first appeared in the series' debut game. When cast, the ground beneath the enemy party opens up and engulfs the party in a wide reverse shower of Venus energy and medium-sized boulders. Gaia is made available at level 7 to the Squire and Apprentice class series.

The spell also also has two stronger variations, with Mother Gaia being available at level 24 and Grand Gaia being available at level 54. With each successive spell in the series, the sizes of the reverse shower and boulders increase.