Master of Pentacles : Your many years spent studying the art of summoning have given you a unique knowledge of this subtle and complicated discipline. Once per day, when casting a spell of the Conjuration school, you are at +2 caster level when determining the duration of the spell.

Spell-Like Abilities (Sp): Spell-like abilities, as the name implies, are magical abilities that are very much like spells. Spell-like abilities are subject to spell resistance and dispel magic. They do not function in areas where magic is suppressed or negated (such as an antimagic field). Spell-like abilities can be dispelled but they cannot be counterspelled or used to counterspell.

Summoning Mastery (Sp): Starting at 1st level, a master summoner can cast summon monster I as a spell-like ability a number of times per day equal to 5 + his Charisma modifier. The summoner can use this ability when his eidolon is summoned. Only one summon monster spell may be in effect while the eidolon is summoned. If the summoner’s eidolon is not summoned, the number of creatures that can be summoned with this ability is only limited by its uses per day. This ability otherwise functions as the summoner’s normal summon monster I ability. Other than these restrictions, there is no limit to how many summon monster or gate spells the summoner can have active at one time.

Only one summon monster spell may be in effect while the eidolon is summoned.