Killer Rabbit of Caerbannog

Deathtouch, Defender
{2}{p/b}{p/b}: Rabbit of Caerbannog loses defender
and gains +2/+2, flying, trample, double strike,
and lifelink until end of turn. Activate this ability
only if a creature died this turn.
"That's the most foul, cruel, and bad-tempered
rodent [sic]* you ever set eyes on!"
*It's a lagomorph.