by level 10 you should already know what spells you took and what they do at minimum

As often as not, the control wizard is trying to figure out if they can drop the AoE template to just hit the bad guys. Blaster Casters tend to have less of a problem because every turn is "Does it have fire resistance? Yes: Magic Missile / No: Scorching Ray"

The really annoying wizards are the Summoners, because "it's my turn so let me add another 1d4+1 turdlings to the battle field and take 6 attacks with the gumbas currently out here".