What Heavyweight Does

Heavyweight is Defense +20% plus knockback immunity — heavy hits can't shove the Pal out of position. It's the mirror twin of Burly Body (+20% with flinch immunity instead), and both are budget versions of Diamond Body (+30% with both immunities).

The knockback immunity is worth more than it sounds against chargers and slam-heavy bosses: a Pal that holds its ground keeps attacking instead of tumbling. Heavyweight + Burly Body together replicate Diamond Body's immunities with more total defense across two slots — a legitimate tank core while you hunt the real thing.

How to Get It

Heavyweight isn't on the surgery menu — unlike Burly Body it has no implant, so it only rolls on wild Pals. Catch a carrier or breed it in via the Breeding Calculator.