| Oladon |
Doesn't seem so, but the reflex DC could go up due to the CON adjustment for size upgrade (if the specific creature's breath weapon DC is based on CON).
This might be different depending on the specific creature's breath weapon; if the damage dice are given as depending on STR or CON, they'll go up, per:Breath Weapon (Su) Some creatures can exhale a cone, line, or cloud of energy or other magical effects. A breath weapon attack usually deals damage and is often based on some type of energy. Breath weapons allow a Reflex save for half damage (DC 10 + 1/2 the breathing creature's racial HD + the breathing creature's Con modifier; the exact DC is given in the creature's descriptive text). A creature is immune to its own breath weapon unless otherwise noted. Some breath weapons allow a Fortitude save or a Will save instead of a Reflex save. Each breath weapon also includes notes on how often it can be used, even if this number is limited in times per day.
Format: breath weapon (60-ft. cone, 8d6 fire damage, Reflex DC 20 for half, usable every 1d4 rounds); Location: Special Attacks; if the breath is more complicated than damage, it also appears under Special Abilities with its own entry.
Adjust any special attacks or qualities that are based on the creature's size, Hit Dice, or ability scores.