nomadic survivors

{t}: this creature gains carry on until end of the turn (you can tap that creature to give to another
creature who shares a type with that creature persist)
{t}: thit creature gains +x/+y where x is the
number of zombies in the battlefield
and y is the number of survivor in the battlefield.
well, we can continue or stop
and i don't need to say what happen if we stop... no?