All in The Impermissicon

New Spells: Memory Magic

Sift Memory began with a realization that while the existing modify memory spell allowed a caster to change someone's memory even of the distant past, there were no spells that could enable the caster to see the target's memories. The best you could do was prompt them to remember while using detect thoughts, but this has obvious downsides and limitations.

New Spells: Master Pyromancies

Fist of Flame is intended to be a simple-to-understand single-target damage spell, fitting into the lineage of blightharmdisintegrate, and finger of death. As an eighth-level spell, fist of flame gets to pack some debuffing power with its damage punch. Blood to Flame is both a new Pyromancy spell and a new Blood spell (what a fun venn-diagram!) you can use to torture your enemies as they die a gruesome death.

New Spells: Minor Blood Magic

The gore spike cantrip offers a Constitution-based alternative to firebolt for simple damage; blood boil is a potent at-will (concentration) debuffing cantrip with short range and minimal damage; and blood extraction is a 3rd-level area spell that damages enemies over time, dealing more damage to bloodied foes, and absorbing the blood of defeated foes for your consumption.

New Spell: Gravity Well

This 9th-level spell shares some features with meteor swarm, such as its ability to deal high damage and its ability to damage objects in a wide area. Both spells will absolutely ruin a city district. However, gravity well is a concentration spell with the distinction of doing very little (just difficult terrain) until you start your next turn after casting.