Spells
Source: Advanced Class Guide, p. 104
Replaces: This ability replaces the magus’s spells class feature.
An eldritch scion casts arcane spells drawn from the magus spell list. He can cast any spell he knows without preparing it ahead of time. To learn or cast a spell, an eldritch scion must have a Charisma score equal to at least 10 + the spell’s level. The DC of a saving throw against an eldritch scion’s spell is 10 + the spell’s level + the eldritch scion’s Charisma modifier. An eldritch scion can cast only a certain number of spells of each spell level per day. His base daily spell allotment is the same as for a bard of the same level. In addition, he receives bonus spells per day if he has a high Charisma score.
An eldritch scion’s selection of spells is limited. He has the same number of spells known as a bard of the same level, and can choose new spells to replace old ones at 5th level and every 3 class levels thereafter, just as a bard does. See the bard (Core Rulebook 35) for more information on swapping spells known. This ability replaces the magus’s spells class feature.