Summon The Gate (3.5e Sacrifice)
From D&D Wiki
Manifesting the Gate in reality, it's terrible doors part and from the infinite black you prepare for a journey, or perhaps call something terrible from beyond. You duplicate the effects of a Gate spell, including the XP cost if used for summoning. In the case of planar travel, the caster and other gate knights suffer no ill effects, but all others passing through the gate must make a save vs fear (Will negates). If they fail, they are shaken for 10 minutes. On a successful save, they are still shaken for 1 round. This disturbing nature does not bother creatures which are called through the gate.
Health Cost: -17 and XP cost when summoning creatures.