Junk Berserker

"Junk Synchron" + 1 or more non-Tuner monsters <br>You can remove from play 1 "Junk" monster from your Graveyard to select 1 face-up monster your opponent controls. That monster loses ATK equal to the removed monster's ATK. If this card attacks a Defense Position monster, destroy that monster at the start of the Damage Step (without damage calculation).