This item is filtered out of normal pre-final shop and crate rolls for the characters below. At the final-wave boundary and in endless, character filters are disabled. If filtering empties the candidate pool, generation can use an unfiltered backup pool. Upgrade rejection stops after 50 retries. These are offer filters, not ownership or use prohibitions.
For declared direct stat effects, the same item calculation used on character pages applies each character’s stat-gain factors. A value group appears when the signed change is at least 50% of this item’s total absolute direct-stat magnitude.