Listen over all it’s not that hard:

1-get times 10 soothing balm

2-stock up on trank arrows

3-find giga in wild (wooded areas and along beaches)

4-find a high place to lure it to where it can’t attack you

5-shoot it with trank arrows

6-when it is tranked put lots of narcotics meat and the soothing balm in it’s inventory

7-build a wall around it so other animals or players can’t kill it

8-once it is tamed put a saddle on it and ride back home