Ignis Murus

Ignis Murus is a Defensive Spell that summons a wall of flames in an arc before the caster. Anyone who touches the fire receives the burning effect, which lasts for 8 ticks and deals 2 damage per tick for a total of 16 damage. 
It costs 4000 points, and is unlocked at Year 1.
== Description ==
"Curve a wall of blazing fire in front of you."
== Location ==
Inside the roof of the Astronomy Tower. Easily accessible by broom.
== Upgrades ==
=== Upgrade 1: Stubborn Flame ===
Fire wall stays up for a longer period of time.
=== Upgrade 2: Greater Wall ===
Fire wall becomes significantly larger.
== Notes and Trivia ==
* Accio can be used to pull opponents into the fire, however the effort for this combination is generally not worth it as the minor burning damage applied is a lackluster reward.
* Ignis Murus is more useful against NPCs, as they have no pathfinding AI to avoid environmental hazards. Large enemies such as the Basilisk will cross through the fire particularly often.
* Ignis Murus used to be unlocked at Year 6, but on August 2nd, 2024, it was changed to a secret spell and given a location rather than being bought directly from the shop. Its year requirement was then lowered to 1.