Prowler can't be blocked by creatures with power 2 or less.
Whenever Prowler deals combat damage to a player, put a +1/+1 counter on another target creature you control.
Prowler's first ability applies only at the time blockers are declared. For example, if Prowler is blocked by a creature with 4 power, and then an effect gives that creature -3/-0, it won't stop blocking Prowler.
