Reduce Person, Mass

This spell causes instant diminution of all allied humanoid creatures, halving their height, length, and width and dividing their weight by 8. This decrease changes the creatures' size category to the next smaller one. The targets gain a +2 size bonus to Dexterity, a –2 size penalty to Strength (to a minimum of 1), and a +1 bonus on attack rolls and AC due to their reduced size. Melee and ranged weapons used by this creature deal less damage. A Small humanoid creature whose size decreases to Tiny has a space of 2.5 feet and a natural reach of 0 feet (meaning that it must enter an opponent's square to attack). A Large humanoid creature whose size decreases to Medium has a space of 5 feet and a natural reach of 5 feet. This spell doesn't change the target's speed. Reduce person dispels enlarge person.