Pack Size Map Regex (36%+)

Monster Pack Size adds monsters rather than drop rate, so it is the roll that kill-based strategies scale on: essences, shrines, Breach, Harvest. This regex keeps maps at 36% pack size or more, the line most map filters treat as well rolled, and dims everything under it. It says nothing about quantity, so a dense map with poor drops still passes. Pair it with the quantity regex, or set both thresholds in the generator, for maps that are dense and rich at once.