How Magical Bloodlines Work
for Spellcasters and Their Babies in The Sims 4
The Magical Bloodline Trait is a new feature in Realm of magic
Magical Bloodline is a trait passed on by Spellcasters to their children, which results in a few benefits for the child should they choose to pursue Spellcasting. There are also mechanics that decide whether a Sim's offspring will be a caster in the first place, given the possibility for casters to have children with a non-caster or another type of occult.
What Magical Bloodline Does
The Magical Bloodline trait does a few things based on the strength. There are three levels to it:
- Weak Bloodline: Gives 10% more Spellcasting XP and +1 talent point on each rank up in Spellcaster. You are also 10% less likely to suffer an overload.
- Strong Bloodline: Gives 20% more Spellcasting XP and +1 talent point on each rank up in Spellcaster. You are also 20% less likely to suffer an overload.
- Ancient Bloodline: GIves 30% more Spellcasting XP and +1 talent point on each rank up in Spellcaster. You are also 50% less likely to suffer an overload.
Spellcaster, Alien, and Vampire
I wondered if you could use Infatuate to get another Sim to like you. I guess if you want to pass on those genes you're going to need to do it the old fashioned way.. or use a Love Potion.
This is relevant to look at first, because if your Spellcaster has offspring with a non-caster occult it's possible for the other occult to pass. It's almost always 50/50, although a witch with an alien would appear to always produce a witch or full-blooded alien and a witch with half-alien could result in witch (50% of the time), no occult (25%) or half-alien (25%). A witch with vampire would result in 50/50 between witch and vampire. Not too complicated, except in the case of half aliens and in particular if you throw in Dark Ley Line which will always make vampire extremely likely no matter the other combos.
Passing on Magical Bloodlines
The game only seems to care about one parent's bloodline - whoever has the highest rank. It can both strengthen and weaken the bloodline. Depends if the parent is actually a Spellcaster. Let's look at that first. If they are a spellcaster it increments from caster with no bloodline to weak bloodline, strong, and finally ancient. If you have a weak bloodline breeding with strong, you will get an ancient because the strong is taking priority. Two weaks won't make an ancient, they'll make a strong. It's super simple in that way.
So, an interesting thing about all this is if a non-witch has the magical bloodline trait and passes it on without manifesting (becoming a witch via the quest from the Sages) the bloodline will dilute. It's in the game code that an ancient will produce a strong if neither parent is a witch. I suppose two non-witches with magical bloodline would pass down from the strongest one.
So does this mean you could have an ancient bloodline, pass it on to a non-Spellcaster (either not witch by birth, another occult or took Rite of Dissolution) and a couple generations down have a Sim with weak magical bloodline who takes up casting and begins to re-strengthen the bloodline? It looks like it.
I don't normally do this type of content but they put enough effort into Magical Bloodline that I thought some people would care. If you have something interesting about how this works, pass it on in the comments and let me know if I've made any mistakes.
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