Samurai Warrior Assassin

{t}{c} Add +1/+0
{t}{c}{b} Add +1/+1 to Samurai Warrior Assassin
(Regenerate if you have 7 {b} in your mana pool)
(For every 4 cards in your graveyard add +1/+1
to Samurai Warrior Assassin)
When Samurai Warrior Assassin
is in your graveyard add {b} to your mana pool.