Bed of Chaos

Creatures Cannot attack you or Planeswalkers
you control, unless their controller Sacrifices a
permanent for each.
Whenever a player sacrifices a permanent, you
may exile that permanent with a Chaos counter
on it. You may cast spells and play lands among
cards exiled with Chaos counters, and you may
spend mana as though it were any color of mana
to cast those spells.