Source: Dragon #313
Whenever you summon a creature, you also access the raw ectoplasmic energy of the Astral Plane. You can mold and shape ectoplasm to your summoned creature, making it even more fearsome.
Prerequisite: Ability to cast any summon monster spell, ability to manifest any astral construct power.
Benefit: Whenever you cast any summon monster spell, you can simultaneously manifest an astral construct power and apply its benefits to the summoned creature. You pay one-half the normal cost in power points for the astral construct power (minimum 1 point). You can then apply any of the menu abilities that you could normally give the resulting astral construct to your summoned creature instead.