Lionello Casarello

Lionello Casarello is a secret-tier brainrot in Steal a Brainrot, the Roblox collection-and-trading game where every pet generates passive income and can be upgraded with mutations and traits. At base, Lionello Casarello earns $58.5M/s and costs $14.5B from the in-game shop — those numbers are the floor, before any multiplier from mutations or trait stacking is applied.

Across live Eldorado marketplace listings, Lionello Casarello prices currently range from 490 Robux for the Default variant up to 588 Robux for Diamond. Mutation multipliers compound on the base income, so the same Lionello Casarello body at a higher-tier mutation out-earns its Default variant by exactly that ratio per second.

For trade evaluation, divide the Robux value by your offer's value to get a clean ratio. The trade calculator does this automatically and applies trait amplifiers (Brilliant, Sniper, etc.) which add to base income additively rather than multiplicatively. See the methodology page for how the valuation algorithm actually computes these numbers, or the trade-valuation guide for a step-by-step walkthrough.