General Feat (Prerequisite: Level 4+, can cast spells with spellslots)
You gain the following benefits.
Ability Score Increase. Increase your Constitution score by 1, to a maximum of 20.
Blood Magic. When you cast a spell with a spellslot, you can increase the level at which it is cast up to the highest level of spell you are able to cast. You take 2d6 damage, which cannot be reduced in any way, for each spell level you increase the spell by. E.g. if you cast Healing Word with a 1st level spell slot you can take 4d6 damage to make that Healing Word take effect as if it was a 3rd level spell.
Bleed. When you deal slashing or piercing damage to a creature, as a Bonus Action you can expend a spellslot of 1st level or higher to cause the target to magically bleed. The target takes 1d4 necrotic damage per level of the spellslot expended at the end of each of its turns for 1 minute. This effect ends if you are reduced to 0 hp, or if the bleeding creature is targeted by an effect that dispels magic or removes curses. Constructs, Elementals, and Undead are immune to this ability.
Sacrifice. You can target yourself with your Bleed ability. While you are under the effect of Bleed, the first time on a turn that you deal damage to a creature you deal additional force damage equal to your bleeding damage plus your Constitution modifier. If you deal damage to multiple creatures simultaneously choose one target to take this extra damage.
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