Target 1 face-up monster your opponent controls that has a Level; Tribute it, and if you do, Special Summon 1 "Vendread Token" (Zombie/DARK/ATK 0/DEF 0) with a Level equal to the Tributed monster's original Level. While the Token Special Summoned by this effect is on the field, you cannot Normal or Special Summon monsters, except "Vendread" monsters.