Sever Soul

Destroy target nonblack creature. It can't be regenerated. You gain life equal to its toughness.

Severed Legion

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Destroy target green creature. It can't be regenerated.
Draw a card.

Target player loses 4 life and you gain 4 life.

Swarm of Rats's power is equal to the number of Rats you control.

Whenever an opponent draws a card, this enchantment deals 1 damage to that player.

Enchant creature
Enchanted creature gets +2/+1.