Taming

Step one: tank acidic vomit

Step two: get x3 on vomit and then wait to get swallowed

Step three: drop at least ascendant or higher weapons or gear to knock it out temporarily. (2 ascendant or higher drops them) be quick.

Step four: mount the dragon and play minigame feeding it random resources it requests 3x successfully until kicked off.

Step five: repeat step one till tamed.

It’s fairly easy but also expensive because you’ll lose armor in one hit. Still testing better ways but that’s how tamed a 140 on official.