Baneblade Scoundrel

Whenever Baneblade Scoundrel becomes blocked, each creature blocking it gets −1/-1 until end of turn.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

Whenever Baneclaw Marauder becomes blocked, each creature blocking it gets −1/-1 until end of turn.

Whenever a creature blocking Baneclaw Marauder dies, that creature's controller loses 1 life.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)