sorc level 3 picks

Hi all,
Despite my long experience with sorcerers, i am wondering which level 3 spells i should take for my latest sorc. Please note that this is for solo (mostly) no reload game.

The first 3 picks are obvious to me :
- MMM
- haste
- skull trap

For the last 2 i am pondering between :
- slow : nice debuff but i never use it much
- remove magic : same thing, useful in theory but i prefer to deal with magic users using improve invis and MMM and in the end i never use it.
- flame arrow : good damage but completely inferior to skull trap for a solo char (magic damage immunity is easy to get to be able to use skull trap at point blank, lots of fire immune, no aoe)
- vampiric drain : damage is really poor but the added hp can be interesting.
- ghost armor : good ac but not really interesting as a 4th pick (stoneskin is already there, ac bracers give almost the same ac)
- minor spell deflection. Would be very good if it gave deflection againsy level 8 spells (i hate maze traps...). Not so good with protection limited to level 7 (improve invis is a better protection against casters)
- invis on 3m could be ok but i already have the level 2 version

Everything else seems useless to me

What do you think?

Thanks for the help