Flying (This creature can't be blocked except by creatures with flying or reach.) Bloatfly Swarm enters with five +1/+1 counters on it. If damage would be dealt to Bloatfly Swarm while it has a +1/+1 counter on it, prevent that damage, remove that many +1/+1 counters from it, then give each player a rad counter for each +1/+1 counter removed this way.