Dance of the Stars

Dance of the Stars is the ninth challenge on the Tenets of the Devoted board. It consists of defeating a duo of Alz'ein and Etaos at the same time.
== Turn Order ==
Alz'ein -> Etaos
==Rules==
=== Both ===
# Both bosses can only be stunned once each (barring autostuns). Use it wisely!
#* They will only be stunned for one turn, regardless of how long the stun is supposed to be.
# Both bosses have two potions which heal 25% of their HP, and are used when they drop below 50% HP.
#Both Alz'ein and Etaos are supported by an Unael, providing various buffs throughout the fight.
#* These buffs are independent of their respective bosses' rotation (i.e. they will be used even if stunned).
=== Alz'ein ===
# Alz'ein is initially supported by Isiri, providing either Bonus or MPM, alternating between the two.
#* If Alz'ein was hit turn one, Isiri will start with MPM, otherwise she will start with Bonus.
# Alz'ein's rotation depends on whether or she hit the player.
# When Alz'ein's Rift Cutter Boost drops to 0, she uses her nuke skill.
#* After each nuke, Alz'ein gains a stacking Boost buff.
#* Every 20% HP lost (80/60/40/20), Alz'ein will receive a buff that increases the damage of her nuke if used within 5 turns.
#** When applied, this buff will pause Isiri's buff rotation for the turn.
=== Etaos ===
# Etaos is initially supported by Nirios, providing either MPM or Crit damage, alternating between the two.
#* If Etaos was hit turn one, Nirios will start with MPM, otherwise he will start with Crit damage.
# Every other Etaos' skill depends if the previous alternate one has landed or not. Etaos will repeat using them until they hit.
# When Etaos' Paranoia reaches 25, he uses his nuke skill.
#* After each nuke, Etaos gains a stacking Bonus buff.
#* Every 20% HP lost (80/60/40/20), Etaos will receive a buff that increases the damage of his nuke. This bonus can be lowered by landing multiple hits before the nuke is used.
#** When applied, this buff will pause Nirios' buff rotation for the turn.
=== Isiri and Nirios (noncombatants) ===
* If Alz'ein or Etaos are defeated, their respective Unael will start buffing the survivor, without resetting their buff sequence.
**Isiri:
***Isiri: 'By the power of the stars, The Dagger against your foe!'
***Applies 'Teltys' to Etaos for 4 turns inclusive.
****Bonus +40.
***Isiri: 'A bulwark drawn from constellation, bring forth The Shield!'
***'Azcrat' to Etaos for 4 turns inclusive.
**** Melee/Pierce/Magic +40.
**Nirios:
***Nirios: 'I see an opening.'
***Applies 'Analysis' to Alz'ein for 4 turns inclusive.
**** Increases crit modifier by 0.75x.
***Nirios: 'Watch yourself, Unael!'
***'On Guard' to Alz'ein for 4 turns inclusive.
**** Melee/Pierce/Magic +40.
== Equipment ==
With both bosses dealing ??? damage, it's best to stack ??? + All.
== Strategy ==
*First target heavily depends on the class. Alz'ein deals massive damage and gains stacking Boost, while Etaos has a faster nuke and gains stacking Bonus. The first target generally depends on class selection, classes that can consistently avoid all of Etaos's brain attacks may prefer to remove him first, while classes with fewer defensive options can opt to first remove Alz'ein's massive damage potential.
*Both have 2 healing potions that they will drink when their health drops below 50%, interrupting their rotation.
*Both can be stunned once for one turn.