Yep, these are really good points. The sad thing is that we're going in at level 12, so I don't have teleport until next level. In the previous campaign, we did a fight with a Draco Lich and the only reason there wasn't a TPK was teleport. So I will be hoping to get that spell back soon.
The DM for this game is really experienced in general, so he knows to put a ticking clock on everything. We are playing Shackled City so there's this literal volcano that's starting to tell us it's going to erupt. It will be good to note that the 2/rest/2 should be pretty easy. Our DM isn't certain on that, and until I see what the other party members can do, I'm not sure either. I am the GOD WIZARD, not DPS, so I'll have to see what our other party members can do in those terms. I'm really excited about the game, since it's an excellent adventure, shackled (hah, see what I did there!) to a rules system that has some issues at high levels. I think it's going to be better in 5E but we will have to see. At least our warlock won't have to roll spell resistance on every. Single. Attack. again.