http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=140219 - Horde of Notions, his strongest Elemental summon, which in effect is really kind of like The Wild Hunt, but with only Elementals.
Supreme Exemplar and Doomgape, which devours everything it can while healing Than'Sanel, could work as a "last resorts", I guess? They're both 10/10 but with specific requirements.
Dawnfluke protects against damage.
Shriekmaw, Wispmare, and Ingot Chewer have destroy effects.
Briarhorn and Meadowboon give other summons a boost.
Reveillark lets him call previously used and de-summoned creatures that are "weaker" attack-wise.
Spitebellows deals direct damage.
Walker of the Grove and Spawnwrithe make tokens.
Plumeveil is a flying defender. No real special ability.
Morselhoarder allows him access to more magic energy.
Thunderblust is acts as a direct damage attack.
Flickerwisp exiles something for a "turn".
Spitemare takes damage and, while being injured or destroyed, returns that same amount of damage back to its attacker.