- “A geomancy skill that inflicts damage with the power of water.”
- —Description, Final Fantasy Tactics.
Quicksand (底なし沼, Sokonashi Numa?), also called Whirlsand (アリ地獄, Ari Jigoku?), is a recurring ability in the series. It is often used by enemies, but is also an ability the party may use, usually used with the Geomancer class. It either removes a target from the battle or inflicts non-elemental damage to the entire party.
Quicksand is used by the boss Sandworm and by the enemies Desert Killer and Spizzner. It inflicts 60 fixed non-elemental damage to the party and inflicts Sap. It is also a Gaia ability which can only be used when fighting in deserts, and inflicts instant KO to all enemies in the battle.
Whirlsand, used by Ruby Weapon, removes one party member from the battle permanently (this party member is considered dead and cannot be brought back into the battle by any means). It is only used if there are more than one living party member in the battle.
Quicksand is a skill that can be learned by the Geomancer job. A Geomancer standing on either the Marsh, Swamp, or Poisonous Fen terrain tile will use Quicksand to deal Water-elemental damage with a chance of inflicting Doom to any enemy units within five squares. It costs 150 JP to learn.