Captain Gorscheff

All mercenary creature you control have +1/+1
and Haste.
{t}: Put a Debt counter on one of your land.
Search your library for a mercenary card, put
that card in your hand. Shuffle your library.
(As long as the land have a Debt counter on it,
the land now produce only {1} when tap for mana and
have {3}: remove Debt counter from land.)