Bane: Bane allows the caster to invent and speak a simple, single-sentence prophecy directly pertaining to the victim of this spell; if the victim fails to resist, then to the extent it lies within the power of this spell to arrange it, the prophecy will come true. The prophecy must be of intrinsic and obvious harm to the victim, and may be made continuous or conditional (e.g. "You will stink of death forever," or "If ever you look upon the House of Renin in Calasta, your hair and nails will all fall out, never to regrow!" or "Whenever you do battle with a Knight of Illenia, your right arm will weaken and fail you!") as the caster wishes.
Curtain of Flame: This is the spell that Nimlo eventually used to ensure that the "Holy Grat'han Bandits" remained trapped in their cave, raising a thin sheet of completely opaque, blazing fire that holds back creatures and flying projectiles alike with its thermal currents and constant waves of searing heat, needing no fuel of its own except for the caster's attention as he continually weaves it into being, but setting anything that comes too close aflame.
Displaced Perception: One of the options Theril considered for surveillance of Thaqz's team, this spell allows the caster to see, hear, smell, and (to a limited extent) even touch and taste objects within a few dozen meters as if standing right on top of them without actually coming near.
Dragon's Roar: Apparently as a curiosity, Dargon and Quix's draconic tutor taught them a spell that allows them to briefly duplicate the full effect of a dragon's roar, a sound audible for miles around that can shatter glass and ceramics close by, and deafen, flatten, or even kill living creatures who stand too close.
Driving Hail: Somewhat more subtle than the likes of Firecast and Thunderbolt, Driving Hail fills a ground-level area of limited size but any simple shape the caster desires, forcing anyone and everything within away with gusts of icy wind and driving hailstones. It can be released in such a way that it lasts for two hours, doing slow but steady damage throughout that period to everything that tries to pass, or concentrated into a shorter time, dealing much less potential total damage to someone or something that fights its way in and insists on remaining inside, but dealing damage far more quickly to anything trying to enter or pass through the area.
Emancipate: Emancipate can free its subject from virtually any single magical or pseudomagical influence or compulsion, from a simple Bewitch spell to the lure of a siren's song, from the effects of a backfiring attempt at Mind Reading to a Bane spell. If it worked in Tolkien's world, it could even have freed Boromir (at least for a while) from the lure of the One Ring.
Fertile Ground: First developed by the elves of the Grat'han jungles, this is the spell by which (with many castings over the course of several days) Theril was able to transform a handful of thornbush seeds into the vast Hedge that protects Alluarten. Only Theril has mastered all of the uses of this one, but Nimlo, Dargon, and Quix have all learned to use it in its simplest form.
Greater Bewitchment: This is a general-purpose form of the highly specialized Bewitch spell, capable of affecting almost any sentient creature, or several non-sentient creatures at once.
Hallucination: The subject of this spell is wrapped in a powerful multisensory illusion of which no one else is aware. In addition to possibly causing the victim to appear completely insane, this illusion is convincing enough to potentially kill, blind, or otherwise cripple the victim by convincing him completely of the truth of a horrible vision. Beneficial effects are also possible, but the mind is always doing nearly all it can to help itself and the body, and so the margin of possible benefit from convincing the mind of something is much smaller than the margin of possible destruction, so it is used far more often against an enemy than to give aid to a friend. This is the spell that Theril originally learned from Karloc Denobson of the Seven, in exchange for teaching him Theril's Assurance.
Mirage: This powerful variation on Visual Illusions generates large, long-lasting illusions that remain stationary relative to either the center of the spell's effect or the willing creatures they conceal. Though the illusions can not move themselves (within their frames of reference) they can conceal moving objects, like flowing water or moving animals. The spell is broken however when touched by a sentient being.
Permafrost: The spellweave Theril developed to keep the Solo's restaurant icehouse cold has a number of other uses, though they haven't been put into use. The basic effect is to generate a volume of extremely dense, solid ice, in a shape of the caster's design, that powerfully resists melting and breaking of all kinds.
Preemptive Strike: Developed by Pasha Zavalier (who claims it's almost as valuable in the court of Shalasia as in the Grat'han jungles), this spellweave lies dormant for more than a day, or until triggered by an attack on the caster, at which point it reacts with a bright flash of light and repulsive power to knock the attack aside and knock down the would-be attacker. Unlike Force Block, it works only once, but is pretty much foolproof and infallible. Among Black Steel Wizards, only Theril has mastered this one.
Space Jump: One-way, short-range teleportation that can cause its subject to disappear and reappear, even in mid-motion, with extreme precision and without a sound. Its name derives from the fact that its subject appears to jump instantaneously from one point in space to another.
Theril's Assurance: The spellweave Theril developed to keep Black Steel's command network functioning across the breadth of the world sees more use than any other in the Black Steel repertoire. Nimlo, Dargon, and Quix all use this one to keep in touch with one another, Theril, and their far-flung friends ... and Theril still uses it to coordinate and direct all the forces of Black Steel.
Transfiguration: When wizards threaten to turn their misbehaving apprentices into toads, this is the spell they're implying they would use. This is also the spell that Theril used to create Grynne's "costume" for the celebration of last year's "Night of the Veil" ("between living and dead"). Theril, Nimlo, Dargon, and Quix have all also used a less-lasting variant of this spell to transform themselves when they found it convenient.
Zone of Fury: Another variation on bewitchment magic (like Spellbind), this one fills an area with roiling emotion, so that anyone in the area who fails to resist becomes unaccountably incensed with everything he sees, sometimes furiously attacking friends and foes alike, sometimes standing motionless and quivering with helpless rage.