The big tech choice that is notable in this list in particular is Spell Shattering Arrow in the side deck
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In other words, you can swap evolution cards which is a great thing if you are running two different types of the same Pokmon, such as Umbreon for example, in the same deck
Protector of The Agents - Moon X LIGHT Link 2 [ Fairy / LinkEffect ] ATK 1800 DEF - 2 Fairy monsters If this card is Link Summoned: You can send 1 "The Sanctuary in the Sky" or 1 card that mentions it from your Deck to the GY, or if "The Sanctuary in the Sky" is on the field or in either GY, you can add 1 "The Agent of Mystery - Earth" from your Deck or GY to your hand instead
No matter whether they could draw six or mill six, either way, they would gain a huge advantage in Dragon Ruler decks, as all of their summoning effects could activate from the graveyard as well as the hand.
