Vincent, the Vanquished King

Menace
When Vincent, the Vanquished King dies or
becomes exiled, it becomes an Enchantment
with "Creatures you control can't attack
unless you pay 1 life for each attacking
creature." Target opponent gains control
of this Enchantment.
{3}{b}: Exile Vincent, the Vanquished King;
Creatures you control gain Menace until
end of turn.