Ruling Question about 1-0-1 chains

[camilo13]

So i am fairly new to playing competitively, and have a question about putting a chain in your deck that is 1-0-1. For example, I posted a deck a few months ago and got a suggestion to put in one duskull and one dusknoir, but no dusclops. Why is this? I feel it would make it more difficult to play because rare candy is necessary to get out dusknoir. Is it just to save space or what?

 

[DNA]

Yes, it's mostly to save space, because Rare Candy can be used for basically anyone (and Dusclops is only for one card), and if you run about 3, they're easier to draw. Besides, Rare Candy lets you get Dusknoir out instantly (whereas normally you'd have to wait at least 2 turns), as Dusknoir is usually a surprise tech (keep the pieces in your hand, then play him and instantly sweep away something).