When facing a Sunbreaker using Hammer of Sol I often see them throw a hammer directly at their feet to kill enemies at close range. This becomes a panic button that has no drawback, and will actually heal you through the Cauterize perk. When using a Nova Bomb in extreme proximity to yourself you can take significant damage, so why don't Sunbreakers? Sunbreakers should take damage if they are within the range of their own hammer explosions (and maybe even burn damage to prevent Cauterize). This punishes a panicking Titan and creates a weakness of HoS in CQC. This also reduces the effectiveness of the Forgemaster perk, as it would make Suncharge and Scorced Earth more viable options since they would give close range effectiveness (without damaging yourself).