Much To Do About Rabbits

For every basic land on the field add a 1/1 white
rabbit token. For every non-basic land add a 2/1
black rabbit token. Repeat action every end step.
{5}, Sacrifice half of all rabbit creatures on the
field -Hopping Mad: add +3/+0 modifier
to all rabbits attacking this turn.
The key to success is to breed faster than you can die...
that is, if you are a rabbit