Z-Metal Tank

Reconfusion (If Z-Metal Tank is equipped with X-
Head Cannon and Y-Dragon Head, you may exile
all three cards. If you do, you may put XYZ-Dragon
Cannon from outside the game onto the battlefield
under your control without Polymerization.)
Once per turn: You may discard a card. If you
do, equip an artifact you control to Z-Metal
Tank.
Limited 1