Is everything completeable without pyramid throwing and teleport spells? I think if I play without those, I'll do things how you are supposed to, but I don't want to actually get stuck if they are needed. There are at least 6 places I got to with prymid throwing that I didn't discover another way to get to but I think are reachable.
Aside from entering the Temple of Death and the Trial of Ascension, the pyramids seem to be completely optional.
For the Temple of Death, you can skip it by killing the NPC Cassandra wants you to kill, or ignore the Soulforge quest chain and use the death knight spell in the final battle.
The Trial of Ascension can be skipped by metagaming (looking up or bruteforcing the candle combination), otherwise there is one area where you will need the pyramids to get into a walled off area.
You can complete the game without using any of the teleport spells (including the self-teleports), since there is always another way to continue through the game.
