Except that a single finger of death could kill a enemy with 666 666 hp..."he is immune to death magic", then flesh to stone. And could cast 5 wishes per long rest at higher levels, necromancers could on 2e make the enemy save with - 8 penalty or die instantly with Finger of Death ( -2 from FoD + -2 from specialization + -4 from greater malison) and could put 3 FoD in a chain contigency and cast all of then meaning that the enemy needs to do 3 saves with -8 penalty or die. On BG2, 3 skull traps in a sequencer can means 60d6 damage in a single instant.
And enemies has way less hp back on 2, to the point that deity's avatar had about 200 hp... Also, you are comparing a pun pun build with a pure wizard.
Making up excuses why spellcasters aren't OP in 5e by countering how they always could be brokenly OP. Haha predictable as always. Your 2e wizard can kill someone not immune around your level around 50% of the time at the best (much lower chance at higher level with proper gear), whereas my 5e wizard will kill anyone not immune 100% of the time. Either is way, Wizards are brokenly powerful if built right. Something I don't have a problem with as long as they don't step on too many toes.
Nothing wrong using a multiclass build, especially if it doesn't sacrifice even 9th level casting ability to become godlike. The sequencers of BG2 was silly icing on the top, you could use them defensively and/or defensively to be immune a reminder how bad Bioware was at balancing their own game (made for some exciting mage on mage battles though!). Skull Trap and Sequencers were AFAIK pure Bioware inventions, but your combo was fairly useless against the ultra-powered enemies which were immune to just about any damage dealing magic. I think I reserved my sequencers to defeat immunities and for defense - offense was never an issue.
