Ultra Beast Guzzlord

Worm Hole — At the beginning of your upkeep,
you may exile Ultra Beast Guzzlord from your
hand. At the beginning of combat on your turn
you may pay {1}{u}{b}. If you do, put Ultra Beast Guzzlord from exile onto the battlefield under
your control tapped and attacking. Sacrifice it at
the end of combat.
When Ultra Beast Guzzlord enters the battlefield, sacrifice X other creatures then target opponent
loses X life.