The Evaluation Side Deck.

[obelisk_incarnate]

My favorite Side Deck is different then keeping some same-theme cards concealed. Mine uses cards that destroy specific cards, particularly the cards that the deck revolves around/keep it running. Cards like Abyssal Designator, D.D. Designator, etc. These cards could result in dead draws for round 1 or waste of cards. Others like Getsu Fuhma, who kills all Zombies in battle. Ojama Trio, which gives you swarm-stoppers for Monarchs (And an old favorite of mine). Among others. Is this a good idea?

Additional Comment:

bump......

[landmastertank]

yes, side-decks should really be used for countering what a player runs into within they're area not just the metta in general.

[Dark World Overlord]

The best thing to do is to plan out your Side Deck by using cards that will help counter other decks in your area and a little bit further than that.

You always want to be prepared, just in case something unique pops up.

[AndroidPsychoShockr]

Indeed, your Side Deck is a very important part of your game. I aim to cover the decks that I fight the most often. However, if your area is varied, then using cards that target specific cards are very powerful. I think your side has good answers to common problems. Nice work. ^^