Intimidate (This creature cant be blocked except by artifact creatures and/or creatures that share a color with it.)

When Black Cat dies, target opponent discards a card at random.

1B, Sacrifice another creature: Put a +1/+1 counter on Blood Host and you gain 2 life.

Flying (This creature cant be blocked except by creatures with flying or reach.)

Carrion Crow enters the battlefield tapped.

Enchant land

Enchanted land has TAP: Target player loses 3 life.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creatures color.)

Covenant of Blood deals 4 damage to target creature or player and you gain 4 life.

Enchant creature

Enchanted creature gets -1/-1 and cant block.

B, TAP, Pay 1 life: Put a +1/+1 counter on Cruel Sadist.

2B, TAP, Remove X +1/+1 counters from Cruel Sadist: Cruel Sadist deals X damage to target creature.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creatures color.)

Put target creature card from a graveyard onto the battlefield under your control.