Monster Reincarnation

Edison Card Text
Discard 1 card. Add 1 Monster Card from your Graveyard to your hand.
Starter Deck: Jaden Yuki • 2007-07-25
Targets
No Damage Step effect
Banlist • Unlimited
Interactions
What happens if I discard Dandylion for Monster Reincarnation and add it back?✓
Dandylion is discarded as cost, then added to hand by Monster Reincarnation.
Dandylion's effect is still recognized as having been met in the GY. It triggers and activates from the GY even though Dandylion is now back in the hand.
Can Dandylion trigger from private knowledge locations?!
Dandylion is discarded and then moved to a private knowledge location, such as with Monster Reincarnation.
Yes, it can trigger because its trigger is recognized when it hit the graveyard.
Rulings
edisonformat.net
Discard 1 card. Add 1 Monster Card from your GY to your hand.
●This effect targets a card in the GY. It is negated by Necrovalley.
●You discard a card for cost.
●If you discard Night Assailant, Makyura the Destructor, or Dandylion their effects activate (in the GY), starting a new chain, even if you retrieve the same card.
edisonformat.com
Discard 1 card. Add 1 Monster Card from your Graveyard to your hand.
This effect targets a card in the Graveyard [REF]]. It is negated by "Necrovalley".
You discard a card for cost.
If you discard "Night Assailant", "Makyura the Destructor", or "Dandylion" their effects activate (in the Graveyard), starting a new chain, even if you retrieve the same card.