Buff draconian knights (a fair bit) and draconian scorchers (mildly)

Despite shifting away from a complete mess of cribbed spellsets,
draconian knights still had a smattering of indistinct spells despite
the vague theme of buffs, ice, and necromancy. They're the only draconian
class that had spellset variation, and they hardly got anything particularly
dramatic like the crystal spears, hellfire, blink allies encircling, or
summon miasma like the other classes. Altogether, this made them not
particularly memorable; despite a bunch of weak unique spells, they were
not any more noticeable than the reavers everywhere else.

Ironically enough, I'm concentrating their spell sets together in a fashion
that makes them a stronger version of those reavers. Their previous spell sets
were:
1. Bolt of Cold, Throw Icicle, Bolt of Draining, Invisibility, Simulacrum
2. Bolt of Cold, Throw Icicle, Lightning Bolt, Vampiric Draining, Agony
3. Bolt of Cold, Throw Icicle, Haste, Animate Dead, Ozocubu's Armour
Their current set is now simply:
Bolt of Cold, Throw Icicle, Haste, Invisibility, Simulacrum, Ozocubu's Armour.
Always having Haste, while hardly unique compared to other places, gives them
an edge compared to other draconians. They've also gotten a free 1/3 chance for
a good_item weapon, which altogether should produce a class distinct for
shredding players to bits by themselves instead of relying on randomness,
blasting, or allies (though they can still cover all three). They're still equal
in arena to monks, somewhat, so it should be fine. It's Zot, anyway.

To move on, draconian scorchers are sad for a relatively simple reason:
they are an explosions-focused, elementally-focused version of the annihilator,
but with the explosions they are rather neutered by simply being as surrounded
or adjacent to the scorcher as is likely with their bands. To slightly fix this
problem up, their sticky flame (which is a weaker copy of a draconian breath,
and no longer significant with item destruction's passing) has been replaced
with Bolt of Magma, so they've got a bit more blasting without collateral
concerns.