Neeko, Blending In

Neeko, Blending In is a Neutral (Colorless) Champion unit — 6 energy, 1 power, 4 might, no keywords (Ixtal/Neeko tags, Epic). The card text is: "If Neeko is in your deck, choose up to 3 different legends in addition to your starting legend. (Different means none match names.) When you play me, choose one of those legends and add it to your Legend Zone while I'm on the board."

Note the current wording says "up to 3" — the 2026-10-09 errata fixed earlier text that forced exactly three, so you can register zero to three extra legends at deck construction. Those extra legends aren't Champion Legends (Rule 107.4.d.1), so they don't replace or alter your Domain Identity (Rule 176.1), and because they aren't Champion Legends they can be removed from the Legend Zone (Rule 107.4.d.2) — which is exactly what happens when Neeko leaves the board, since her ability only lasts while she's in play.

Practical upshot: you're paying 6 for a 4-might body plus temporary access to a legend's abilities (Legends can have passive, triggered, and activated abilities — Rule 174.6–174.8), not a permanent identity change. If you meant a specific interaction (Neeko dying with a granted legend, or stacking her with something), tell me which and I'll rule on it.