Sample character with a Wizard conjuration specialist:
1: Wizard 1, (FEAT; if 3.5 Augmented Summoning, this should be Spell Focus: Conjuration) Scribe Scroll, familiar
2: Wizard 2,
3: Wizard 3, (Skill focus: Knowledge (CHOICE))
4: Wizard 4,
5: Wizard 5, Craft Wand (critters on, er in a stick)
6: Summoner 1, (Augmented Summoning), summoning spell meta (repeat spell)
7: Summoner 2, bonus Summon Monster IV-as-V
8: Summoner 3, summoning spell meta (maximize spell)
9: Summoner 4, (Leadership), Bonus Summon Monster V-as-VI
10: Contemplative 1, Summoning prestige domain
Leadership: take a cohort that matches the flavor of your pact. You've earned it.
By 8th level you're going to be awesome. Sure, you're probably not lobbing fireballs into a crowd, but every rogue is getting sneak attacks and every other warrior is getting flanking bonuses. You choose to summon the maximum number of critters or gamble for even more by repeating the spell the following round.
If Leadership (which is a
great feat) isn't your style, take empower spell for even more critters, stackable with your virtual metas.
If you wish, try this with a druid. I haven't made a build with it, as the drawbacks are tough to overcome (finding a way to make the knowledge skill requirements work).
Clerics work well as summoners, too, but they don't get Summon Swarm as a fallback like WIZ and DRDs do.
