Please note that Aquam, in my interpretation, is about water and “waters” (which very roughly are naturally occurring liquids) it isn’t about anything that happens to be fluid in form. As a result Aquam spells involving ice don’t need a Terram requisite and spells that make things liquid without actually turning them into water don’t require an Aquam requisite.
Level 15
The Wizard’s Silvered Mirror
R: Near D:Sun/Perm T: Small
Fills a bowl or covers a small surface with a watery but highly reflective substance. This is about the best mirror you’re going to get in 1220. Add a Rego requisite and you can hang it from a wall.
Level 25
Waters of Black Malediction.
R: Touch D: Sun/Perm T: Small
Fills a small container you touch with a black poisonous liquid. The venom is deadly in even comparatively small doses, and you can get roughly five fatal doses from the container (although you’ll need to administer them yourself). The victim needs to make a stamina stress roll of 9+ to avoid dying instantly from a draught of the poison, 12+ to avoid incapacitation and probable death, 15+ to avoid most ill effects.
Level 40
Voice of the Seas
R: Per D: Conc T: Special
The caster of this spell can speak to, and understand the speech of the very oceans themselves. The “voice” of the ocean takes the form of the crashing of waves and the roaring of winds, and the concerns of the ocean are not the concerns of men. On the plus side the ocean is a dynamic body and so speaks far faster than trees or mountains
Level 30
Foretaste of the Winter
R: Touch D: Moon/Season T: Boundary
This spell causes all natural water within the target area to freeze as if subjected to the cold of the depths of winter. Early morning dew will become frost, lakes and ponds will freeze over, rain will become snow or hail as it falls.
Like Perdo Animal effects, Perdo Aquam spells are base duration Momentary, not Instant as described in the book. Note that a spring destroyed by the level 20 effect is gone forever, and a lake destroyed by the level 40 ritual is destroyed at duration Permanent.
Level 30
Curse of The Watery Desert
R: Touch D: Moon/Perm T: Ind
The target of this particularly baleful curse is stricken with a thirst that cannot be quenched no matter how much they drink. Sigil effects in this spell often manifest in exceptions to this rule. Marbaid, the blood-obsessed Flambeau, for example, may cast a version of this spell which allows the caster to slake their thirst only with blood.
Level 20
Neptune’s Chariot
R: Per D: Conc T: Group
The caster of this spell and any small group of his companions are swept up in a chariot of water, which carries them at the direction of the caster. The passengers are protected from the usual hazards of journeys by water, and indeed will not even be wet when they disembark. However there is risk of drowning should the caster take the chariot below the waves.