原文As long as you control Kid Loki, creatures you control that you've put one or more +1/+1 counters on this turn will have hexproof regardless of whether Kid Loki was on the battlefield under your control when you put those counters on those creatures.
原文Kid Loki doesn't need to have been under your control when the first card is drawn for his ability to trigger. As long as you control him when you draw your second card in a turn, that ability will trigger.