Agents Of F.O.W.L.

All Villains you control, in your library, hand,
and graveyard are F.O.W.L. Agents.
F.O.W.L. Agents you control get +2/+2 and have Double Strike.
Whenever a F.O.W.L. Agent dies, place that card
on the bottom of your library.
{1}{u}{b}{r}{g}, Discard a non-Villain creature:
Search your library for a Villain card, reveal it,
and put it into your hand. Reshuffle.