Comeback Blast

A heroic and breathtaking blast of ruby lightning that draws power from courage, sorrow, love, and determination. Choose a target in range, and make a ranged spell attack against it, ignoring any penalties to ranged spell attacks if the spell would receives at least two separate increases in damage, or automatically hitting if the spell would receive at least four separate instances of the damage being increased: on a hit, the target takes 4d10+spellcasting ability modifier Lightning damage.

For each hit die you are missing due to damage from an enemy or a trap, the spell deals an additional 1d10 Lightning damage. For each ally that has died within the last 5 minutes due to an enemy or trap, the spell deals a further 1d10 Lightning damage. If the target has higher total health than you, the spell deals an additional 2d10 Lightning damage. For each living enemy within range of the spell that has been attacked by you or an ally within the last 5 minutes, the spell deals an additional 1d10 Lightning damage. For each level of Exhaustion you are suffering, the spell deals an additional 1d10 Lightning damage; for each other status condition you are suffering from, the spell deals an additional 1d10 Lightning damage.

If the target was an ally of yours within the last 24 hours, the spell deals an additional 2d10 Lightning damage. If the target is a known family member of yours, the spell deals an additional 2d10 Lightning damage; if the target is a previously unknown family member of yours, the spell instead deals an additional 4d10 Lightning damage. For each attack the target has recharged after being damaged by you or an ally within the last 5 minutes, the spell deals an additional 1d10 Lightning damage. For each time the target has regained hit points after being damaged by you or an ally within the last 5 minutes, the spell deals an additional 1d10 Lightning damage.

For each time the attack of you or an all has missed the target due to teleportation within the last 5 minutes, the spell deals an additional 1d10 Lightning damage. For each time the target has lost no hit points after being hit with an attack or failing a saving throw from an attack or spell by you or an ally within the last 5 minutes, the spell deals an additional 1d10 Lightning damage. If there are any prophecies you know of regarding your birth or the defeat of the target, the spell deals an additional 4d10 Lightning damage. If you have no other available spell slots, the spell deals an additional 4d10 Lightning damage. If the target is capable of destroying the planet, the spell deals an additional 4d10 Lightning damage. If the target has destroyed your home town, the spell deals an additional 2d10 Lightning damage. If the target made a monologue within the last 5 minutes, the spell deals an additional 2d10 Lightning damage. If you or an ally knows the Wish spell and has cast it within the last 5 minutes, the target takes an additional 4d10 Lightning damage.

If this spell would receive at least 6 separate increases to damage, any cursed items attuned to you become unattuned to you. If the spell would receive at least eight separate increases to damage, it ignores any resistances or immunities to spells or Lightning damage the target has. If the spell would receive at least ten separate increases to damage, the target gains Vulnerability to Lightning damage for the cast. If the spell would receive at least twelve separate increases to damage, you regain all your hit points and lose all your levels of Exhaustion. If the spell would receive at least fourteen separate increases to damage, you regain all your used spell slots, except for this one. If the spell would receive all possible increases to damage, its damage is maximized.