Edison Card Search

Modern Text:

This text is from the most recent printing of the card. It may not apply to Edison Format!

"X-Head Cannon" + "Y-Dragon Head" + "Z-Metal Tank"
Must first be Special Summoned (from your Extra Deck) by banishing the above cards you control. (You don't use "Polymerization".) Cannot be Special Summoned from the GY. You can discard 1 card, then target 1 card your opponent controls; destroy that target.