Phantom

Among all mutations in Steal a Brainrot, Phantom sits at the very top of the power ladder with its x12 income multiplier — matching the elite tier alongside Cyber and Disco (both x11) and leaving common mutations like Gold (x1.25) or Diamond (x1.5) far behind. Slapping a Phantom onto a brainrot doesn't just nudge its cash-per-second output; it multiplies the base earnings by a full twelve, turning a modest earner into one of the strongest passive income machines on any base.

Mutations reach your brainrots through two routes: a spin on the Mutation Spinner, which can land any mutation with odds weighted toward rarer results being harder to hit, or through Gold Lucky Blocks, which can produce mutations directly. Because Phantom sits at the top of the rarity curve, expect to sink a serious number of spins — or a lucky Gold Lucky Block pull — before one appears.

When a mutation is applied it also recolors the brainrot's appearance and stacks on top of any trait multiplier the brainrot already carries, compounding the total income boost. A Phantom-mutated brainrot is therefore a high-value trading asset and a priority theft target — keep it deep on your base and think twice before leaving it unguarded.