Zurai said:
Also even if you get past that somehow, it allows the sorceror to pick pure combat spells for their Known spells and use the Spellpool to be just as good as any wizard at utility spellcasting. Spend a round (which doesn't matter out of combat) to get ANY spell of the appropriate level ... there's a reason Sorcerors don't have that kind of versatility built in.
Once per day, or effectively so (a number of spell levels equal to one-half your caster level - generally, unless you're looking at 1st level spells, you'll be taking advantage of this once, perhaps twice, per day). Yeah - it's great for the Sorcerer - that sparkcaster gets something of the Wizard's versatility - but...
1) It doesn't last long enough for item creation (lasts 1 minute/caster level? Sorry, no crafting for you! - well, unless you're using that nifty Lucubation spell...) so you can't use it to make a wand of a spell you will use a lot.
2) It's sharply limited use. Sure, you can, at 8th, Call an Enervation... but then you can't Call Protection from Energy for that Red Dragon you'll be facing. Hope you have it on your list. Sure, you can Call a Spider Climb to get one or two people past the cliff... but how does everyone else cope?
3) Called spells generally cost double your daily resources and combat resources (those with longer casting times than one round get a break on the time doubling) - a round to Call, a round to Cast, a spell slot to receive, and a spell slot to repay.
Thus, if the Sorcerer knows just combat spells, he's still up a creek, as he can help in maybe one or two non-combat situations on a given day. Generally, he's only got "the perfect spell" once per day unless it just happens to be on his known list.
Yeah, it's very, very handy for the Sorcerer, who gets something of the Wizard's utility out of it. It's also very, very handy for the Wizard, who has an easier time getting in (both needs fewer feats and has more feats to pay for it), AND gets as much of the Sorcerer's spontaneity as the Sorcerer gets of the Wizard's utility.
And Wizards are generally considered more long-run useful to begin with.
It isn't broken for a sorcerer (relative to a Wizard) on the basis of what it can do.