lol, the text says it gives the ability to all unicorns without a skill.
Someone noticed it, yay ~~^.^~~
If I use mitosis on the abomination, use this card and kill the abomination with some random CC, giving its skill to my purple dragon. If I activate the purple dragon's skill, am I going to get an abomination or a purple dragon?
Like Torriku said, Mitosis should summon creatures this same as mother creature. Transfering mitosis to Dragon doesn't will make him summon abominations, because...
...it's just weird.

By the way, i'm not 100% sure that " given to all
unicorns creatures without a skill." paragraph is good. Lastly i've imagined something like "given to 4 random cratures". Then it's more random and it gives chance to give skill of died creature to enemy.
But for me, it's more like
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idea, and i don't think it will work with this concept of card.