A build is a wand plus the perks that keep it alive. Most “best builds” fail because they assume spells you do not have.
The boss-clearing build
It fires without stopping. Cast delay stays low, recharge stays shorter than the chain, and you have flasks for the long fight. Damage is whatever the wand can sustain.
The late-game wand
A late wand chains a modifier and a projectile, adds a trigger only when mana allows, and never locks. The spell database shows the mana and delay of each piece, so you can see if it fits.
Reading a tier list
A tier list ranks ideal kits. Your run has the wands you found. Take the build that uses your spells, not the one that needs three you have not seen.
The honest order
Survive, then fire continuously, then add damage. A dead character with the “best” build cleared nothing. A plain wand that chains cleared the boss.
What a build actually is
A Noita build is a wand’s spell order plus its modifiers, not a single weapon. The strongest early wand is a cheap spam wand: a fast projectile with reduced recharge and enough mana to loop. Avoid stacking several expensive spells that drain the mana pool before the shot finishes.