NATURE · CURIO CARD 23 / 48
Rainbow
meteorological phenomenon caused by reflection, refraction and dispersion of light in water droplets. This source-backed topic becomes an original Hive swarm challenge.
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Play Rainbow
The swarm gathers, splits into smaller enemies, rejoins and makes short downward dashes. Leave room for a wider dodge when a lane fills.
Signature: Lane Switch. The swarm shifts lanes in steps. The warning shows which lane stays open. This is fictional battle design, not a claim about the real subject.
Source: Wikidata Q1052 · English Wikipedia topic. Summary: Wikidata CC0 description. Wikidata structured data is CC0; no article prose or photographs are copied here.
Default challenge: v2 rules, seed 275219. A shared link can carry another valid seed. Automatic weapon upgrades do not count as assistance; deliberately claiming the Super Weapon counts one and guarantees a clear.
How this card plays
The swarm gathers, splits into smaller enemies, rejoins and makes short downward dashes. Leave room for a wider dodge when a lane fills. The first warning introduces Lane Switch. Later volleys alternate between that signature and the formation pattern. Survive three waves to earn a clean clear, or take one free assisted clear.