Gliscor, Toxic Glider

Flying When Gliscor enters and at the beginning of your upkeep, you gain 1 life for each creature with a PSN counter on it. Then if you gained 5 life this way, you may return a creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life gained this way. Activate only once each turn. If an opponent has a PSN counter on them, Gliscor has hexproof from that opponent.