Spells
Beginning at 4th level, a ranger gains the ability to cast a small number of divine spells, which are drawn from the ranger spell list presented in Chapter 10. A ranger must choose and prepare his spells in advance.
To prepare or cast a spell, a ranger must have a Wisdom score equal to at least 10 + the spell level. The Difficulty Class for a saving throw against a ranger’s spell is 10 + the spell level + the ranger’s Wisdom modifier.
Like other spellcasters, a ranger can cast only a certain number of spells of each spell level per day. His base daily spell allotment is given on Table 3–12. In addition, he receives bonus spells per day if he has a high Wisdom score (see Table 1–3). When Table 3–12 indicates that the ranger gets 0 spells per day of a given spell level, he gains only the bonus spells he would be entitled to based on his Wisdom score for that spell level.
A ranger must spend 1 hour per day in quiet meditation to regain his daily allotment of spells. A ranger may prepare and cast any spell on the ranger spell list, provided that he can cast spells of that level, but he must choose which spells to prepare during his daily meditation.
Through 3rd level, a ranger has no caster level. At 4th level and higher, his caster level is equal to his ranger level – 3.