Sacrifice Sorcery
Art is from Slay the Spire 2 by Megacrit
General technique
The basic idea is that it allows for the user to trade things in exchange for more power/manifesting new abilities. For instance the user could trade blood in exchange for a boost in CE reserves or output, or could mitigate damage a single time by trading some ammount of blood for it.
Things that the body can naturally regenerate such as blood, hair and the like are worth less to the technique then something like a finger or eye which could not be regenerated. If the sacrificed body part is restored via RCT then the boost they recieve is also lost and they are unable to make Sacrifices for a short duration (duration varies from user to user however a skilled Sorcerer will only have to wait around 3 minutes or so)
Maximum: Lifespan Sacrifice
It is as it says, the user sacrifices a portion of their lifespan for a boost greater than what is capable through using their body as the sacrifice. This can also be used to permanently gain new techniques such as flames or ice (the more lifespan is used, the less limited the technique will be)
Reversal:
The Reversal of this technique I'm imagining that the user acts as an medium from two others to make a trade, one loses something, the other gains. Beyond this it operates the same way however the targets can use their Cursed Techniques as Sacrifice if desired
Domain: Grand Offering Table
The Domain internally appears as the summit of a mountain, a table lies in the centre, various offerings of food and blood lay upon it. in the sky, a giant eye watches over the proceedings. The surehit of this Domain is simple, anyone caught within the domain can be used as Sacrifice by the user however with their body and life being worth far less than the users own, these sacrifices can be used to regain CE heal, or boost the user like normal sacrifices
This is my first time making a CT so any criticism is welcome, I envisioned this as similar to Ryus CT but instead of CE output its based upon Binding Vows