Incarnum Spellshaping( Magic of Incarnum, p. 38)
You gain the ability to invest incarnum into your spellcasting.
CON 13, ability to cast 1st-level spells,
You can learn, prepare, and/or cast spells with the incarnum descriptor (see page 98) as appropriate for your class's spellcasting ability. You gain 1 point of essentia.