Pairing polarity makes a social relationship part of the hit test. The boss gives two players + and two players −, then opens two separate circles. Each succeeds only with exactly two living players of opposite signs. Unlike a generic stack, partner composition and complete body geometry matter at the same instant.
At 0.70 seconds Kern assigns +, +, −, and − to four distinct living players. Both 74-unit circles and the polarity glyphs remain visible while partners choose separate destinations.
Reduced motion disables autoplay. Scrub to 0.70, 1.25, 2.15, 3.15, and 5.50 seconds.
Specify assignment, non-color signs, partner travel, exact occupancy, full-body containment, failure damage, duplicate resolution, and reset.
Snapshot four distinct living players and assign exactly two + and two − marks before movement begins. At impact, each zone must contain exactly two of those players with opposite signs. Reject a dead or missing member explicitly instead of silently reassigning a mark.
Use a 74-unit receiving radius and include each 24-unit body radius when testing containment. The two partners must have room to stand without overlapping each other, and the circles must be far enough apart that one player cannot satisfy both. Reserve ordinary walking time from the starting positions.
Resolve both circles in one encounter-scoped event at 3.15 seconds. A duplicate callback must apply no second damage. Log the four assignments, final occupants, polarity of each pair, failure cause, and reset; test an extra body, same-sign pair, disconnect, late arrival, and replay.
A same-sign pair must fail visibly. Otherwise the + and − telegraphs promise a distinction the collision rule never enforces.
A player's anchor can enter the circle while its body remains outside. Include the entire hitbox and verify that the two partners have non-overlapping standing room.
Use persistent + and − glyphs, distinct contour patterns, and readable zone outlines. Color may reinforce the marks but cannot carry the rule alone.
Test the slowest valid pair at ordinary movement speed from the worst spawn combination. The hold interval should be long enough to recognize that both pairs are correct before the pulse.
Record encounter and event IDs, mark roster, zone centers and radius, body radius, each occupant, and whether the failure was missing, extra, same-sign, or duplicate. This makes retry deterministic.
Kern raises two split stone rings. One positive and one negative rune close each circuit; an unbalanced ring discharges into its occupants.
The same rule can use light and dark, north and south, or two musical notes instead of + and −. You may change the arena shape or the number of pairs, but must then recalculate travel, containment, and readability. A stack merely asks for enough bodies; this requires a precise opposite-sign composition.
Personal spread pushes marked players apart, while stack damage pulls several bodies together without caring which signs they carry. Pairing polarity requires closeness within each opposite pair and separation between the two pairs.
Aufheben applies Thesis and Anti-Thesis marks; its Bombify sequence makes players with opposing marks pair while extra same-sign players create a failure risk. The clip begins at the guide's exact debuff chapter; unlike the two-zone demo, the live encounter combines pairing with a timer and party-size contingencies.
Sin and Punishment gives black and white ring marks that resolve safely by meeting an opposite color. The guide's first ring sequence begins at this timestamp; the demo isolates that pairing rule from Sophia's other movement and balance attacks.
When The Ultima Warrior absorbs Sophia, two players receive black rings and two white rings. The guide identifies opposite-color pairing at this moment; its four-player version shows how the same relation can be reused inside a different boss rotation.
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