Chain Contingency

Tome and Blood: A Guidebook to Wizards and Sorcerers (TB)Updated Supplementals (3.0)

Chain Contingency is a D&D 3.5 spell (Evocation) from TB. On class lists for Sorcerer (Level 9), Wizard (Level 9), Abjurer Variant (Level 9), and others. Range or area: Personal; Saving throw: None (harmless); Duration: 1 day/level (D) or until discharged; Casting time: At least 10 minutes (see text).

School
Evocation
Casting Time
At least 10 minutes (see text)
Components
V, S, M, F
Range
Personal
Target
The caster
Duration
1 day/level (D) or until discharged
Saving Throw
None (harmless)
Spell Resistance
No (harmless)

As the contingency spell, except that you can place up to three other spells upon your person so that they come into effect under some condition you dictate when casting chain contingency.
The spells can come into effect simultaneously or one at a time, one per round.