Spell combinations are special effects that are the result of multiple, specific spells being cast onto the same target or area. When a new spell combination is discovered, an entry is created in the Codex (see Codex: Spell Combinations for more details).
Combinations
Grease Fire
+ Any [ 
]
- Conditions/Spells: Grease + Any Fire Spell
The grease is set on fire causing minor damage to anyone within while they remain in the area, but the grease effect is lost after one "tick". Friendly fire is possible. It should be noted that Flame Blast will not ignite the Grease unless you hit the center of the slick. Also, if you cast Grease under an enemy which is on fire, the Grease will ignite.
Flame Quencher
[ + ] + 
- Conditions/Spells: Grease Fire + Blizzard
A Grease Fire is eliminated.
Storm of the Century
+ + 
- Conditions/Spells: Spell Might + Blizzard + Tempest
Increased lightning damage with a larger radius. Eliminates the Blizzard effects (i.e. knockdown and freeze).
Shattering
[ 
or 
] + [ Critical Hit or 
or 
]
- Conditions/Spells: Petrified/Frozen Target + Critical Hit/Stone Fist/Crushing Prison
Instant kill (higher levels can resist).
- Critical hits can be from Slam, Shred, Overpower, Riposte, Cripple, Punisher and Critical Strike. Note that critical hits from Pinpoint Strike do not shatter opponents.
Paralysis Explosion
+ 
- Conditions/Spells: Glyph of Paralysis + Glyph of Repulsion
An instant, large radius, long duration paralysis effect. Both the glyphs are consumed in the process. Friendly fire is possible.
- Glyphs must be overlapping for combination to occur.
Nightmare
+ 
The target takes heavy spirit damage, but the sleep effect is lost. Horror still takes its normal effect after damage.
Improved Drain
+ [ 
or 
]
- Conditions/Spells: Vulnerability Hex + Drain Life/Mana Drain
Drain Life/Mana Drain have double their normal effect.
Entropic Death
+ 
- Conditions/Spells: Death Hex + Death Cloud
Truly massive spirit damage.
Shockwave
- Conditions/Spells: Force Field + Crushing Prison
Damages and knocks back everyone except force-field target, very hard to resist.
- The combo can only be achieved on an enemy unless an ally is already under the effect of Crushing Prison, as cast by an enemy mage.
Advanced Reanimation
- Conditions/Spells: Spell Might + Animate Dead
More powerful skeleton with special abilities.