Anti-Mage's set "Promo Armor of Tustakuri" is spelled wrong.

The place Anti-Mage comes from (lore) is called "Turstarkuri. In the set, 2 R's are missing.

Here you can see the set name, its description and the name of its pieces. It's "Tustakuri" in all of them. On the right side, you can see Anti-Mage's lore, his 1 response where he mentions the place and the lore of Mana Break. It's "Turstarkuri" in them.