Tibalt's Tower

If a card would be put into a graveyard from anywhere, instead exile it with a tibalt counter on
it.
Players may play cards exiled with tibalt counters
on them if they haven't already cast another spell
with the same name this turn, and may spend
mana as though it were mana of any color to cast
those spells.
Chaos: Exile a nonland permanent chosen at
random with a tibalt counter on it.