Algred, Knight of Death

: When a creature or Planeswalker you control dies, put a loyalty counter on Algred.
0: Exile a Hyrulean Knight from your graveyard, then conjure a copy of it to your hand or battlefield.
-4: Until your next turn creatures that deal damage to you or Algred are sacrificed unless it's controller pays one mana or 2 life for each.