These Ruling(s) have not been confirmed as applicable to the TCG.[Notes 1]
In place of declaring a FULL card name, a precise description of a card's stats, appearance, and/or effects, is considered acceptable so long as both players are in clear agreement over which card is being described.
The "Once per turn: You can declare 1 card name" effect is an Ignition Effect. The card name is declared when the effect is activated, but the card from the Deck is revealed when the effect resolves. The "if it is the declared card, add it to your hand. Otherwise, send it to the Graveyard." is also performed when the effect resolves.
The "place that target on either the top or bottom of the Deck." effect can be activated even if a card is sent from your Deck to the Graveyard by the effect of other cards.
↑Konami Judge Program Rulings are considered unverified, as their source(s) are not publicly viewable. They are not confirmed as applicable to the TCG until they have been officially published by Konami.