Instant Restoration

Conjuration (Healing)
Level: Artificer * 4, Cleric */Oracle * 4, Druid * 4, Hunter * 4, Shaman * 4, Summoner * 4, Warlock * 4
Components: V, S, F/DF (a thimble of water and a seed)
Casting Time: 1 Immediate Action
Range: close (25 ft. + 5 ft./2 levels)
Target: one summoned creature you control
Duration: 1 round/level (D)
Saving Throw: None
Spell Resistance: no
  Instant restoration channels planar energy into a summoned creature. This spell can be cast as an Immediate Action when a summoned creature you control drops to 0 or fewer hit points. Rather than immediately disappear, the creature is healed for 4d8 hp + 1 hit point per Caster Level (maximum 4d8+10 hit points). If this healing brings your summoned creature's hit point total to 1 or more hit points, it remains as if its hit points had never dropped to 0 or fewer. Creatures slain by death effects cannot be saved by instant restoration. A summoner can target his eidolon with this spell.