notes for new players:

• if you are looking for a strong early/midgame gun I recommend phantasma as it is a better version of ignis wraith all around
  ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ- shouldn't be hard to acquire, same mr requirements, but is a shotgun (uses shotgun mods). its a LOT more dps than ignis though, and functions same.
  ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ- example optimized build: https://overframe.gg/build/503496/ (same build for prime and normal)
  ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤ‎‎‎‎‎‎‎‎ㅤㅤ‎‎‎‎‎‎‎‎ㅤ- base [Phantasma] has basically same stats as prime one and can [Reach] dps of approx. ~9.5x of [Ignis Wraith], even with beginner mods (link))

tldr:

• edit1: pure heat is not as strong as I origionally thought. this build still has a purpose for base starchat & base sp and for use with strip at high lvl sp, but the slash varient (link) is stronger in higher lvl sp stripless.
• i made a heat dps calculator where you can compare builds and see a ttk calculator for crit slash vs pure heat ignis to see which is better for you at your level of content
• link: https://docs.google.com/spreadsheets/d/197O0zfjdtC0HKrZM_HqPbbX4_21msqggJRXvfxljHww/edit?usp=sharing

purpose:

• is slower initially (esp before galv ap stacked) than other builds
• heat ticks scale infinitely -> building for heat = most damage in the end. (optimal vs tough enemies / sp)

mods:

• if no arcanes, use build as is with serration instead of bane (bane is weak without arcanes)
• if you have arcanes but dont have primed bane, normal bane is next best. if u dont like banes, go hammer shot or serration
• any ammo exilus works
• if you are missing some mods, use the next closest alternative to you, or use more base dmg. could also use crit mods temporarily (hammer shot + critical delay) if you are missing lots.

basic details:

• crit bad for heat dmg, primed cryo bad for heat chance (full explanations later in guide)
• ignis wraith heat ticks benefit from multishot twice - wiki
  

  ‎the best i can explain it is, first multishot is factored into status chance (as in, how many procs u get per shot), and then it is factored in again because beam weapons combine all the projectiles into one projectile beam (multishot times base projectile dmg) and this is what all the status procs use for their damage calculations. in other words, we get normal amounts of status procs from multishot and each status proc uses a base dmg value of multishot times projectile dmg, so we double dip on it.

quick notes:
why using crit is worse ?

• because building for crit uses two mods to make half ur shots do extra dmg but the other half do a lot less since they dont benefit from those two mods, and for heat dmg specifically it turns out to be more efficient to just [Sacrifice] the crit mods to fit in additional heat and base dmg mods which work on all shots. the math says so. we do lose weapon dps but we make up for it with a lot more scaling heat dps.

why no hunter munitions:

• slash is op vs high armor enemies and it is reccomended if you arent stripping vs super high lvl sp
• however, having to build for slash takes 3 mods out that we could have more efficiently used to instead increase heat dps by a lot more

why not primed cryo?

• doesnt increase heat dmg and makes heat less likely to proc (since viral gets way more share of elemental dmg)

enjoy!