Xenoblade Chronicles 2 1.4 - Kos-Mos - All 4 specials in one Chain Attack with Damage Caps

Using orb master skill, element orb ender aux core, and element orb prioritizer aux core, it is possible to manipulate orb bursts to have one blade do all 4 of their specials in one chain attack. Kos-Mos hits all damage caps in the chain attack: 35 million+ damage. 1:56 is the start of the chain attack.
Lv1 special: 4 million damage. Lv2 special: 4 million damage. Lv3 special: 16 million damage. Lv4 special: 11 million damage (if also counting Rex's damage capped driver arts).
Setup:
For Kos-Mos to do all 4 specials, she has to break the last orb in round 3 of the chain attack. This requires a 5 orb Full burst. Used common blades with Orb Master and put them on AI controlled Morag in this example. AI Rex has Kos-Mos. This allows for much faster placement of all 8 orbs. Used Dark-Light-Electric, Ice-Water-Wind, and Earth-Fire blade combos.
To manipulate breaking orbs and to guarantee Kos-Mos will always break the last orb, used element orb ender (to get past the 1st round) and element orb prioritizer (have Kos-Mos break the last orb).
Used Patroka to help Kos-Mos’ Lv3 reach damage caps.
Battle strategy:
Played as healer: keep the party alive and spam healing arts with pouch items. Get all 8 orbs up.
Chain attack 1st round: Goal is to just break 1 orb to advance into the next round and set up 2 orbs to break in the next round. 1st blade is dark and targets light orb for 2 HP damage. 2nd blade is wind has element orb ender to instantly break the ice orb (3 HP damage). 3rd blade (Kos-Mos) is light and targets dark orb for 2 HP damage.
Chain attack 2nd round: Goal is to break 2 orbs and set up 1 orb to break in the next round. 1st blade is dark and now breaks the light orb. 2nd blade is fire and damages water orb for 2 HP damage. 3rd blade (Kos-Mos) is light and breaks dark orb.
Chain attack 3rd round: Goal is to break 2 orbs with Kos-Mos dealing final hit (then Kos-Mos will do the Lv4 special in Full Burst). 1st blade (Patroka) is earth and damages electric orb (2 HP damage). Patroka will then increase light damage for Kos-Mos. 2nd blade is fire and breaks water orb. Finally, Kos-Mos with element orb prioritizer aux core will target the electric orb and break it. Then start Full Burst.
Loadout:
Nia: Lv99, both driver charts filled, level 10 ideas, level 5 weapons arts, burst symbol, optical headband, critical symbol, narcipear jelly, hot ruby steamed bun
Twin rings common (Dark): Used to heal and carry Hunter / Shoulder aux cores. Exact setup does not matter.
Dahlia (Ice): Used to heal. Exact setup does not matter.
Patroka (Earth): Used to boost Kos-Mos’ Lv3 damage.
Note: Directly controlled Nia to keep party alive and to start all blade combos, which then forces AI to switch blades.
Morag: Lv99, both driver charts filled, level 10 ideas, level 5 weapons arts, burst symbol, optical headband, critical symbol, sparkly snow perfume, clicks-clacks
Katana common with Lv5 Orb Master (Wind): Placed Element Orb Ender aux core to get past the 1st round of chain attack. Exact setup for rest of slots does not matter.
Ether cannon common with Lv5 Orb Master (Fire): Exact setup does not matter.
3rd slot: Blank
Note: Since both blades have Lv5 Orb Master skills, Orb Master is available for the entire battle…as long as Morag is alive. If she goes down or falls off a cliff, then Orb Master cannot be used.
Rex: Lv99, both driver charts filled, level 10 ideas, level 5 weapons arts, burst symbol, optical headband, cannon attachment, clicky-clacks, astrology made simple
Kos-Mos (Light): S+, tachyon chip, element orb prioritizer to target final orb, affinity max atk v, outdoor attack up v
Ether cannon common (Electric): Used ATK blade with highest ether mod I had for this element: 18%. Exact setup does not matter. Can place Hunter’s / Shoulder aux cores on this blade too.
Ether cannon common (Water): Used ATK blade with highest ether mod I had for this element: 24%. Exact setup also does not matter. Can place Hunter’s / Shoulder aux cores on this blade too.
Note: Having all 3 blades on Rex as ATK type gives additional damage bonus.