That card filtering keeps your hand full and your graveyard stocked with more knights
If you believe in a card long term, whether because of the artwork, the Pokmon, or a gut feeling about where collector interest is heading, grading it locks in the condition at whatever state its in now
Thats especially nice when you consider some people will pay three mana for a spell that does the same thing without the creature that stays around and might get even more lands later
Lyndhurst Card Show, Lyndhurst Rec Center, 862 Valleybrook Ave., Lyndhurst NJ, 07071
This means you want to reserve a single spell for this phase, if possible, before moving into combat
Blood Artist or Zulaport Cutthroat will provide the life drain in order to kill the table