You’re going to need a lot of Trank Arrows to knock out this animal If the level is 666 you are going to need 200 Trank Arrows and you will have 10 left over
Ankylosaurus
The Ankylosaurus is a heavily armored herbivore specializing in harvesting metal and other mineral resources. Its durable body and crushing tail make it a sturdy, if slow, defensive mount.

How ARK players tame and knock out the Ankylosaurus: what to feed it, what to knock it out with, and how to keep it safe.