Contained Chaos

{x}{x}{x}{t}, Put X charge counters on Contained
Chaos
{10}{t}, Sacrifice Contained Chaos: Target
opponent exiles X creatures, lands,
enchantments, artifacts, planeswalkers, cards
from their hand, graveyard, and library
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
Before their defeat, the Gatewatch hid the one thing
they all knew Nicol Bolas was after.
-Ugin