Xeddick, Kraul Telepath

Whenever a nontoken creature you control dies,
put a +1/+1 counter on Xeddick, Kraul Telepath
Whenever a nontoken creature an opponent
controls dies, exile the top card of their library.
As long as it is your turn, you may cast cards
exiled with Xeddick, Kraul Telepath. These
cards cost {x} less to cast, where X is the number
of +1/+1 counters on Xeddick, Kraul Telepath.