Heaven vs the hells in d&d?

well user.. sterile means that something is unable to reproduce aka give birth.
When you crossbreed two races it will sometimes (if not most of the time) end with a sterile being.
Look at ligers. Half tiger, half lion. Breed those suckers and you get a horse sized cat of war. Sadly (or luckily) they are not able to reproduce naturally. Otherwise you would have some sick warlord type with an army of ligers

>Thinks tiefling and Aasimar are half-breeds

This is wrong in every edition where these races exist.

It's 3.5e. MM3 or MM4 don't remember which or the name.

>Chart from the book so shit that WotC threw it out

It's also just wrong.
Elf x Ogre crossbreeds are a thing from Mystara.
Dwarf x Elf and Elf x Orc are both stated to exist in older Realms shit.
Minotaurs have to breed with humans since they don't have females.
And so on.

Fair.

I make it so in my homebrew setting b/c it makes more sense to me personally. So long as I don't run AL it hasn't been an issue.
Man, an army of liger sounds badass.

Come on we all know that human is the universal, end all middle race so when tieflings and aasimar mate it just cancels out both celestial and infernal just makes a regular human.

Gosh, it’s like you don’t even know that humans are the center of all things.

>army of liger
are there any stats/rules for creating halfbreeds?
I have an orc warlord who might want to have this

I recommend reskinning a high-CR beast. Large cat or dog most likely.

With 1-axis alignment, every fight between any Law aligned creature and any Chaos aligned creature is part of a grand cosmic struggle.

>what happens if a tiefling and aasimar mate
An apocalyptic event, as the offspring is such a special snowflake that the laws of reality break down around it.