The Spade Branch is one of two known branches of Heartland Duel School in the Xyz Dimension in the Yu-Gi-Oh! ARC-V anime. They are rivals with the school's Clover Branch.
The school trains professional Duelists.
Prior to the invasion of Heartland City, Yuto, Shay and Lulu Obsidian attended this Branch of the Duel School.
After the invasion, students from this school formed parts of The Resistance, among them Yuto, Shay and Lulu.
Yuya Sakaki, guided by Yuto, journeyed to the school sometime later. The building had been abandoned and was all but destroyed.