Easy tame if prepared . Found in viking bay caves on Ragnarok . Go in cave during day , find good high level one , snap stone pillars around it . Look for others nearby and kill them . Wait till it awakens at night , tranq through gaps in pillars. Feed after starving for required time . I used a thylo in caves but most mid sized things will fit ( dire bear , carno etc ) . Just be sure to explore in daytime hours to find your tames !
Tame the mega during the day! It is extremly slower during the day due to wanting a rest. It is a very strong dino, it has been tested to be even stronger than the allo! Be careful if you tame it at night ;) caw