This is a guide on how to respec in Dragon Age: Inquisition without having to reroll your character.
You can set this up from the start of the game. After the prologue, you go to Cassandra to discuss your first quest in the Haven. When you’re done, you get quests to meet the other members of the Inquisition. Among them is the Blacksmith, and you can meet him outside the main city.
When you’re done talking to the Blacksmith, you will see a golden standard in the smith. You will be able to buy and sell items here, and here you will find a gold amulet; The Tactician’s Renewal. You can buy the amulet at the price of either one gold or 345 gold. Bioware basically gave players a free trial to buy the amulet at one gold, but after you buy this one gold amulet, you’re stuck with 345 gold amulets afterwards. Choose your price and buy it.
When you get to Skyhold, the golden standard selling the respec amulet can be found in the Undercroft.
Once you’ve decided you want to respect, go to the accessories screen. Equip the amulet on yourself or the companion you want to respec. The amulet will break immediately, and the character it was equipped on will reset their skills immediately, including start skills.