Dark Souls 3 Thief Survival Tips:

1, the thief will not die the first time he steals, the second or third time the thief will die. The second time the thief has to go to the Cold Valley Irusil, where the thief will die if he does not fulfill the conditions.

2, the onion line after doing the undead street co-op to kill that demon, go to the inside of the profound church to open the two shortcuts and the main door (at this time do not go to the point of the campfire in the room of Rosaria), and then teleported back to the church campfire to go to the onion in the well, and from the main door to go in and turn right to see the pachy.

3, after the end of the episode, teleport back to the fire festival field on the tower to see Patch again, before you can buy the onion suit back to throw to the real onions. Then kill the boss to go to Coldwell Valley and light the campfire in Rosaria's room.

Make sure to kill the Pope in Coldwell Valley and find the onion in the sewer next to the fourth campfire before letting the thief go to keep him alive.

Expanded:

Dark Souls 3 Onion Knight Side Quest Item Obtainment and Tips

1. Forced to meet him on the undead street on the way to the Way of the Sacrifice, where he'll be caught in an elevator puzzle. At this point, take the elevator up and talk to the Giant and Onion will appear on the middle platform during the elevator's lift (you need to roll to access it during the elevator's lift).

After you talk to him, jump down and fuck the demon, and the onion will help you out. After you're done, the onion will give you a keg of booze and a body move called "Raise Your Glass", and you can talk to him again to get a second body move called "Snooze".

2. After you reach the Deep Church and kill the boss in this area, teleport to the second bonfire in the Deep Church, go out the front door, and there is a well on your right, where you'll hear Onion calling for help.

Go up and ask him if someone stole his armor and ask if you saw it. Teleport back to the fire festival and ask Bald Patch to buy an onion suit and bring the armor to him to get a body movement "Two Hands Rejoice".

3, the order of this step is very important, do not go to the capital of sin in the middle of the early, but from the fourth bonfire in the Valley of the cold cold through a lot of chastity of the sewers into a house with a fireplace.

At this point, the onion will sit there and give you a miracle, "Force and Shot," plus a barrel of wine. Also, make sure to keep this progression close during the takedown process so that the thief survives 100% of the time.

4. After arriving at the underground prison, at the bottom of one of the giants you first saw, you will see Onion trapped inside through a barred window, so go up and talk to him. Then you can get the key to the ancient prison from the place where there was a spell.

Then you'll reach the Sin City and climb up the ladder to the roof on the right hand side of the place full of poisonous swamps and Sadako. Look around carefully and there will be a gap, then jump in and you can open the door with the Ancient Jail Key you got earlier, talk to Onion to get a wedge shaped disk, and next to it you can get a Greedy Golden Snake Ring.

5. If you do step 4 and don't take out the Giant King before doing part 4, there will be a special animation with Onion on it with you after you enter the foggy door and start a battle with the Giant King.

After you finish off the Giant King with him, he will give you the last barrel of wine, then teleport to any area and then back to the Giant King's boss room, where you will see props on the floor, which you will pick up, including a set of Onion's gear, his shield, and a second Storm Breeder.

If you've already killed the Giant King before doing step 4, then refreshing the map will only pick up the Storm Breeder, but not his suit and shield.