Domain Access from Complete Champion p52 allows a sorcerer to take a cleric domain for the price of forever losing one L1 and one L2 spell known. The sorcerer gets the domain power, but can cast the domain spells (using his sorcerer spell slots) only 1/d.
I was looking at the Time domain and the Charm domain.
Time gives you Improved Initiative for free, and has some nice spells.
Charm gives an untyped bonus of +4 to charisma 1/d, and has situationally useful spells (so the 1/d isn't likely a problem).
What domains offer the greatest utility and/or power? Are there other domains with a better synergy with sorcerer features?
Best Answer
The Good domain allows you to cast spells with a +1 caster level. While by itself, the power is hardly impressive, it has excellent synergy with the Aligned Spellcaster ACF (DR357). You sacrifice gaining a familiar to add the [Good] descriptor to all of your spells (in addition to a further CL bonus vs evil aligned/subtype creatures). This means that every spell you cast (maybe not evil spells) gains the +1CL from the Good domain power. There are metamagic feats that can also add the [Good] descriptor to spells, but I find this method to be less effective. For further [Good] descriptor synergy, throw in Spell Focus(Good) (BoED) to gain +2 DC on all spells with the [Good] descriptor. Yes, it's more powerful than Spell Focus(School) and applies to every spell you cast. Maybe a little cheesy, but balance is always a delicate thing in 3.5.