Astrotogen, Creator Of Stars

When Astrotogen, Creator of the Stars enters the battlefield, at the start of every phase, and when it is sent to the graveyard or exile choose 1.
• {13} each opponent gains 1 astrology counter at the beginning of each upkeep, after one player hits 13 astrology counters every opponent with at least 1 astrology counter takes 13 damage and if a opponent has all 13 they lose the game (this spell can happen once each game)
• gain 5 life