Boss Overhaul #2: Nameless One

The nameless one boss fight could be so much more interesting. Currently, the nameless one is branded as a master summoner, but its most powerful attack isn't summoning mobs, but casting magic projectiles. Here's an overhaul that makes more sense for the nameless one:

Stage 1: In this stage, the nameless one behaves how it currently does, except it will sometimes summon wraiths to keep you on your toes and not camp attack it with the lightning rod. To balance it out, the nameless one's staff will deal less damage.

Stage 2: The nameless one will summon 1 necromancer and 3 wraiths, then continue attacking normally.

Stage 3: The nameless one will summon 3 necromancers and 5 wraiths, then continue attacking normally.

Stage 4: The nameless one, with only 1/4th of its health left, will split into 3 clones, each with 1/12th of the nameless one's original health. One clone will only summon vanguards, one clone will only summon necromancers, and one clone will only summon wraiths. Kill all 3 clones to defeat the nameless one.