What is the ruling for Light Pulsar Dragon in the current game mechanics?

Light Pulsar Dragon's effect allows you to Special Summon a Dragon-type monster from your Graveyard when it is Special Summoned. This effect can only be used once per turn. Additionally, if Light Pulsar Dragon is sent from the field to the Graveyard, you can Special Summon a DARK Dragon-type monster from your Graveyard.