Is this kit for blockwars?
-The idea of a tank is to take a lot of punishment for other players. It's a defensive kit, acting more like a wall and less like a fighter. Since it has the BEST armor in the minigame (almost full iron armor), it would make it too OP to have a weapon. Heck, it takes much much longer for a warrior kit to take down a tank kit compared to taking out other warrior kits. Adding the weapon would make the warrior kit redundant since the tank kit would become superior in almost every way, even if the axe is considered weaker than the sword.
-The weapons in blockwars are weak compared to usual PvP weapons. The best is an iron sword used only by the glass cannon ninja kit and the weakest is the wood sword used by the runner kit. Adding protection may not seem much, but relative to how weak the weapons are in the minigame, it won't balance well.