Tame a female/male and go to a new sever and tame a male/female and breed the and boom baby unicorn 👶🦄
Unicorn

What ARK players use the Unicorn for, and how to get the most out of it in ARK: Survival Ascended & Evolved.
Don't tame it pick it up with a wyvern put it in your feet and in the water and wacth it drown that's what I do with all 78 unicorns I found besides those 2 I dropped it lava