Spelldoor

Glantri: Kingdom of Magic

A very powerful variation on the 5th-level teleport spell, spelldoor transports not people or objects, but a spell's effects. Casting spelldoor instantly conveys the caster's next spell to the location specified during spelldoors casting. The transported spell's effects unfold normally at its area of arrival. For example, wizards can send a fireball through a spelldoor to an enemy's fortress or a detect magic spell to a spot they plan to teleport to. But note that wizards cannot send a spell to a place they've never been.

Spelldoor does not modify a spell's effect—only its range. And, note that the wizard must transport the entire effect—a chain lightning bolt cannot affect two targets within range of the caster and then travel through a spelldoor to far targets. Only ranged spells can be sent via this spell, not those with range: 0 or Touch. This method of transport has the same probability of sending a spell exactly where the caster desires as a normal teleport spell's chance of success.

The material component, worth about 5 gp, is a bronze ring exactly 1 inch in diameter.

Wizard's Spell Compendium

A very powerful variation on the 5th-level teleport spell, spelldoor transports a spell's effect. The caster's next spell is instantly conveyed to the location specified during spell-door's casting. The spelldoor functions only on spells that have a range (not 0 or touch), and conveys them only to a point to which the caster has been.

The transported spell's effect unfolds normally at its point of arrival. For example, a wizard can send a fireball to an enemy's fortress or a detect magic spell to a spot to which the wizard will later teleport.

Spelldoor does not modify a spell's effect- only its range. Further, the wizard must transport the entire effect-a chain lightning spell would not affect two targets within range of the caster and then travel through a spelldoor.

This method of transport has the same chance to send a spell exactly where the caster desires as a normal teleport spell's chance of success.

The material component is a bronze ring exactly 1 inch in diameter.