Phosphoromancer Initiate

From the World of Solenguard you are a phosphoromancer with the following abilities:

• you know the Light and Sacred Flame cantrips. Constitution is the spellcasting ability for all spells given by this feat.
• You can see in darkness for 30ft as if it was bright and another 30ft as if it was dim. This increases your darkvision by 30ft if you have it from another source.
• Once per short rest while in bright light you may expend hit die equal to your proficiency bonus or lower to regain that many hit points.
• At 3rd lvl you can cast the spell Guiding Bolt once per day, at 5th lvl you can cast the spell invisibility once per day.