This is an endgame build for ember which revolves around a cycle of abilities and abusal of infinite damage scaling along with shield gating.
Ability Cycle: cast 2, cast 4 to speed up the immolation charge rate, cast 3 at 90% immolation to strip 100% enemy armor, and then cast 1 to soak up damage from enemies. Rinse and repeat.
Survivability Cycle: When at 0 sheild, dodge/roll to activate rolling guard within the timeframe of 1 second. While invulnerable, cast 3 to restore shields, strip 50%-100% armor, and knockdown enemies within range. Another option when rolling guard is on cooldown is to either cast 1 to go invincible for up to 3 seconds while restoring 100% shields to re-activate shield gating, or just go into your operator and wait.
Defy has infinite damage scaling due to the fact that it's damage goes off of enemy damage dealt to you. You can practically be immortal by abusing the 1 second I-frame from shield gating by constantly casting abilities.
Tips: Whenever you have a status effect on you, you can either status cleanse by rolling, or using defy to clear status effects.