Kapteyn, Lord of the Mosh

Indestructible
Level up: {b}{r}, discard a card
Level 1-2: {t}: amass 2
Level 3-4: Whenever a creature you control dies amass 1
Level 5+: {2}{b}{r}, {t}: sacrifice a zombie Army creature token, deal damage equal to the power of the token to each creature and each player.