I've been thinking some about how dragons would best make use of their relatively limited sorcerer levels, and I've come up with some interesting options for 1st-3rd level spells.
At 1st level, the obvious choices are AC buffs: Mage Armor and Shield. Protection from Good can help, too. Another very nice spell is Blood Wind from SC -- it lets the dragon make a full attack with natural weapons at range.
At 2nd level, Mirror Image is great. It protects against melee/ranged attacks, but more importantly, it protects against targeted dispel magics. Wraithstrike is also huge -- with a full power attack, Wraithstrike could let a dragon deal an extra 100 damage in a round.
Levitate is another interesting option, so that the dragon can hover and make a full attack without having to spend the move action first for the hover feat. It does result in some attack penalties, though. In combination with Blood Wind, it would let a dragon swoop in and use its breath weapon on the first round, then hover and make a full attack at a target on the ground.
Scintillating Scales is a good defensive option -- it gives the dragon a great touch AC to protect against spells.
At 3rd level, one spell that stood out is Blacklight. Dragons are often solo combatants, and the only disadvantage to Blacklight is that it's not very party-friendly. If you're not fighting alongside a party, it's as good or better than improved invisibility.
Haste is always good as well, and Dragonskin (ironically enough) can provide another good boost to AC.
Putting all that together, a dragon that can cast as a 7th-level sorcerer and gets the drop on the party (as any good dragon should) could:
Buff up ahead of time with Mage Armor, Shield, Protection from Good, Levitate, and Mirror Image (maybe a couple copies of it). Perhaps cast them at 6th-level and also pile on a bunch of Read Magics at 7th level to absorb area dispel magics.
Then, while coasting in towards the party, cast Haste and Blacklight. Land next to an arcane caster (or other juicy target) and breathe on the party. Maybe cast Shock and Awe if you get surprise
. Next round, full attack using Wraithstrike if anyone is still in melee range, or make a full attack using Blood Wind otherwise. If they have earthbound attackers, fly up to levitate (or hover using the feat if you have an extra move action) and hit them from above with Blood Wind.
What other good options are there that I've missed?
At 1st level, the obvious choices are AC buffs: Mage Armor and Shield. Protection from Good can help, too. Another very nice spell is Blood Wind from SC -- it lets the dragon make a full attack with natural weapons at range.
At 2nd level, Mirror Image is great. It protects against melee/ranged attacks, but more importantly, it protects against targeted dispel magics. Wraithstrike is also huge -- with a full power attack, Wraithstrike could let a dragon deal an extra 100 damage in a round.
Levitate is another interesting option, so that the dragon can hover and make a full attack without having to spend the move action first for the hover feat. It does result in some attack penalties, though. In combination with Blood Wind, it would let a dragon swoop in and use its breath weapon on the first round, then hover and make a full attack at a target on the ground.
Scintillating Scales is a good defensive option -- it gives the dragon a great touch AC to protect against spells.
At 3rd level, one spell that stood out is Blacklight. Dragons are often solo combatants, and the only disadvantage to Blacklight is that it's not very party-friendly. If you're not fighting alongside a party, it's as good or better than improved invisibility.
Haste is always good as well, and Dragonskin (ironically enough) can provide another good boost to AC.
Putting all that together, a dragon that can cast as a 7th-level sorcerer and gets the drop on the party (as any good dragon should) could:
Buff up ahead of time with Mage Armor, Shield, Protection from Good, Levitate, and Mirror Image (maybe a couple copies of it). Perhaps cast them at 6th-level and also pile on a bunch of Read Magics at 7th level to absorb area dispel magics.
Then, while coasting in towards the party, cast Haste and Blacklight. Land next to an arcane caster (or other juicy target) and breathe on the party. Maybe cast Shock and Awe if you get surprise

What other good options are there that I've missed?