Swarm Zombie Rodents

Mentor Lifelink
When enter the battlefield the opponent player discard a card and exile two of his creatures
on his field.
{b}{b}{b}{t} Give Swarm Zombie Rodents +3/+0 counters, but you lose 4 life.
"The Plague of rodents is here!"
"The world is at the end.."
"Zombie rats shall rule the world!"