Bentley the Brains

Sleep Dart- At the beginning of your combat step
you may tap target creature an opponent controls
and put a sleep counter on it. The next time that
creature untaps, instead remove a sleep counter.

ThiefNet- At the beginning of your end step you
may pay {2}. If you did you may search your library
for a Technique or Power Up card. Add it to your
hand. Shuffle your library. Only activate this ability
if an artifact entered the battlefield under your
control this turn.