Gomorrah, Den of Sin

Enchant nonbasic land. When you cast this spell,
you become the monarch.
Whenever enchanted land is tapped for mana, target
creature an opponent controls loses all abilities and
gets -X/-X until end of turn, where X is equal to
twice the number of casinos you control.
At the beginning of your end step, if you are the
monarch, create a Chem token.