Charise, Archivist of Worlds is a 1 cost Argent unit with only 500 power, but has the ability to search any unit in your deck! By using her Exhaust ability, you can play one counter on Charise. Then once you have built your mass of counters, you can Exhaust this card and pay 1 to search your deck for a unit with a cost equal to or less than the number of counters on Charise. Then you must remove all of the counters. This strategy can help you search pieces to your plan, and is great in combination with low cost units. While the more counters means more payoff, it also leaves your Charise vulnerable to be destroyed!