2016-08-23 : For example, if you draft Pyretic Hunter as the third card in a draft round and then another one as the fourth card in a draft round, each will enter the battlefield with four +1/+1 counters.

2016-08-23 : If Pyretic Hunter enters the battlefield under your control, but you didn’t draft one, the highest noted number is considered to be 0. It will enter with zero +1/+1 counters and will be put into its owner’s graveyard (unless something else is raising its toughness).