Astral Power Core

When you use a sorcery point to metamagic a spell, you can choose to make a CON save DC of 13 (spell save DC) . On a successful save you can teleport up to 10ft In a direction you choose and get temporary HP equal to [roll]1d10+5[/roll]. On a failed save you teleport 10ft away from your location in the opposite direction of the point you chose (so if i choose to teleport 10 feet forward I go 10 feet back, etc) but still get [roll]1d6+5[/roll] temp HP and cause a minor magical explosion, causing lightning damage equal to the Temp HP gained in a 10 foot radius around you. Creatures can do a Dex save to take half the lightning damage with a DC of 13

Eventually at DM's choice the 10 foot increases to 20ft, and again eventually the d10 for success turns into a d12 and the d6 for failure turn into a d8