Dododex
ARK: Survival Evolved & Ascended Companion
Tips & Strategies

It's common knowledge these overgrown lizards are more than fast in any body of water. They are great for survivability where situations turn un-winable(eg. gliding across shallow puddles as you escape, with you & dino still alive) & have great damage output particularly on land.
I want to highlight the swipe-up lunge attack on mobile which, with enough stamina & some directing practice, will increase the effective chomped area, can 2x or more your hit damage output, get you the 1st(& 2nd) hit. You need to skillfully slam against the target in order for the next lunge to do it's damage(2, 3 or 4 times) before shooting past & having to turn around/readjust.
Combat IN the water is much less effective. Your speed makes it hard to score hits & water combat will drain your sarco's food very quickly. You have to adopt a hit & run tactic which will work fine as long as your sarco is prepared with plenty of meat & you keep in mind DROWNING while focused on a drawn out fight in the depths (due to sarco's speed).
Sarco's great instead for gathering information underwater or traveling large distances. Unlike travel with a pteranodon, sarco has a bigger weight capacity, so it can be handy for moving what you need to quickly, carrying pick-ups along the way & bodyguarding while you are busy. Thanks for reading!
More Sarco Utility Tips
Once upon a time, my Sarco and I were hunting some Megalodons for fish meat, when a pack of Cnidaria stung the both of us, I tried to swim to the shore but it's too late. Mantas and Megs attacked me and my Sarco. My Sarco tried to fight back, biting his opponents. I swam back to the shore, and... My Sarco never came back. His dead corpse was a feast for Mantas and Megalodons. I hold my fists, my mind thirst for revenge. Rifle in hand, I swam back, shooting every Megalodon and Mantas I see. It was a bloodbath, bodies of Megalodon and Mantas floating in the ocean. I avenged his death… My Sarco…
Rain pours down to the land. He left his beloved wife and son.
One like = One Sarco lives.
This is probably the best traveling creature in the game… at least on any map with intricate river and ocean systems. It is almost as fast as the itchy but it is easier to tame, it can go on land, and has ok attack (definitely better than the itchy). Isn’t that good for deep sea exploration such as getting pearls and oil like the basilo is but it is great for early game and late game. Way better for getting around than any flier, not great for getting resources but for taming something or moving base locations it is perfect. Stop sleeping on the sarco
TLC patch coming March 2018 adding "Deathroll" grab attack on small creatures and a grab attack (possibly thrash) on larger ones, gaining a 180 degree attack and a small lunge to its attack (maybe for deathroll purpose), will no longer aggo pirahnas and in the wild will sit with mouth gaped open awaiting prey.