During the TBC Prepatch of 2.2 and WoTLK PTR, the Black Qiraji Battle Tank was intended to be able to fly in Outland and Northrend by turning into a Flying Wasp but
Burning Crusade Classic will use patch 2.4.3 but phases matter more for class balance
PVE TBC Prot Paladin Tank Guide (Short)
Classic Warrior Tank Spec, Builds, and Talents - WoW Classic - Icy Veins