This was one of the more difficult things I have ever tammed in Ark. The importance of stealth is huge here so here’s some items you will need!

-Fish baskets filled with higher level fish for a better tame effect. (2.5x is the best, but you can do it fairly alright with 1.1x)

-Ghillie suit

-It’s nice to have a extra hand to clear out the area around the Shadowmane this makes for an easier tame

Now how to do it (without cage).

-Crouch near 30 meters of the animal

-Place the fish in the basket in your zero slot

-Feed animal only when they are laying down (the prompt to feed will show up when you are near)

-They only lay down during short durations during the day, they are awake at night and this will cause you not to be able to feed.

-IMPORTANT: feed the animal only on its back side or butt area, never approach the front of the animal they will agro you and you tame will be brought to zero if so.

-This is where the extra hand comes in handy, having the area near the animal cleared of ANY Dino’s will cause your tame to not attack anything making it much easier to get them to lay down for the feeding.

-Continue to feed whilst they lay down, being very stealthy, and BOOM! You’ve got yourself a Shadowmane :D