Just to add to what Zuri said:
If you are looking for breed only bases like sunrise or leonid for example - you have to breed to the lion with the base to have a chance of it passing down. Your chances are also different depending on the base genetics of the lions you breed.

And the breed only markings, like Tier 2, Tier 5 and some of Tier 3 - you can only get them from breeding to a lion with them or, for Tier 2 and 3, use Random Marking Applicator (RMA), Random Marking Replacer (RMR) or Total Shuffle for a chance of having one applied.

Tier 5 markings are hybrid only markings (from leopon and tigon).

You can also get Tier 6 markings from RMA and RMR, as those are markings that you can get only from those or by breeding lions that already have them.

Skins are separate from bases/markings for the most part.

Rosettes can appear randomly in any breeding, aside from Mottled Rosette which is a leopon marking and one of parents must have it to be able to pass it.

If you use reverse breeding system - the cubs will be sent to you the moment they wean, at 5 months of age. With heats bought in other ways - player HAS to send you the cubs you agreed on, if they do not - you can send a ticket to Modbox so the mods will help.

Here are some links from wiki that will help:
marking tiers and info
skins
manes
studding
base genetics

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If you buy a heat from another player you should get the cubs. If it is a FULL heat you should get ALL the cubs. Ifs it’s a split heat it will go, one cub yours, one cub theirs etc.

I suggest using the reverse breeding system so you know the cubs will get sent to you

I’m pretty sure you mean combo bases, in which you can breed to factors together for a chance at a completely new base
https://www.lioden.wiki/combo-bases

As for markings you can’t get them randomly through breeding, one lion must have the marking in order to pass it down (other than rosettes, thanks for the post below!)

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https://www.lioden.wiki/markings

Sometimes rosettes appear randomly through breeding with NCLs!

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