Aether Pulse

At the beginning of your draw step, put a Pulse
counter on this permanent.
At the beginning of your upkeep, exile each
other permanent with a converted mana cost
equal to the number of Pulse counters on Aether
Pulse. If the exiled card is a permanent, its owner
may create a token copy of the exiled card; if it's
a nonpermanent, its owner may create a copy of
the exiled card and put it on the stack.