Archlord Kristya

Edison Card Text
① If there are exactly 4 Fairies in your GY, you can Special Summon this card (from your hand).
② If Summoned this way: Target 1 Fairy in your GY; add that target to your hand.
③ Neither player can attempt to Special Summon monsters.
④ If this face-up card would be sent from the field to the GY, return it to the top of the Deck, instead.
Targets
Note: the first effect
No Damage Step effect
Banlist • Unlimited
Interactions
Does Light-Imprisoning Mirror negate Archlord Kristya's return-to-Deck effect?✓
Kristya leaves the field and Light-Imprisoning Mirror is face-up.
No. Light-Imprisoning Mirror only negates activated effects, and Kristya's return-to-Deck is a continuous effect that does not activate.
Can you activate Future Fusion while Archlord Kristya is on the field?✓
Kristya is face-up and a player wants to activate Future Fusion.
No. You cannot activate Future Fusion if its resolution would be prevented by Kristya.
Rulings
edisonformat.net
This card is returned to the top of the Deck if:
● It would be sent to the GY while "Macro Cosmos" is applying.
● It would be sent from the Spell/Trap Zone to the GY.
This card is NOT returned to the top of the Deck if:
● It is destroyed and banished by "Bottomless Trap Hole".
● Its Summon is negated by "Solemn Judgment" or "Thunder King Rai-Oh".
● It would be sent from the field to the GY while "Skill Drain" is applying.
● It would be sent from the field to the GY while "Grave Protector" is applying.
● It would be sent from the field to the GY while "G.B. Hunter" is applying.
● It would be sent from the field to the GY while face-down (unless it was destroyed by battle).
●If this card is destroyed by battle, the ② stops applying in Substep 6 ("Tragoedia"'s effect can't be activated).
edisonformat.com
(S) If you have exactly 4 Fairy-Type monsters in your Graveyard, you can Special Summon this card from your hand. (1) When you do, add 1 Fairy-Type monster from your Graveyard to your hand. (2) Neither player can Special Summon monsters. (U) If this face-up card would be sent from the field to the Graveyard, it is returned to the top of the owner’s Deck, instead.
The (S) Unclassified Effect applies in the hand (this Special Summon does not start a chain).
This card can still be Normal Summoned, or Special Summoned by card effects.
The (1) Trigger Effect is mandatory, it activates & resolves on the field.
This effect targets 1 Fairy-Type monster in your Graveyard.
The (2) Continuous Effect applies while this card is face-up on the field.
"Reasoning", "Future Fusion" and "Monster Gate" CAN'T be activated while this effect applies.
The (U) Unclassified Effect applies when this face-up card leaves the field (this doesn't start a Chain).
While "Macro Cosmos" is active, "Archlord Kristya" is still returned to the Deck.
This effect will not apply while "Skill Drain" is active, as this effect applies on the field.
This effect will not apply when "Archlord Kristya" is sent to the Graveyard while face-down.
VS. "Bottomless Trap Hole": Kristya can't apply its effect, it is destroyed and banished.