A High Market in the manabase, or creatures that have sacrifice abilities, or just an Oketras Monument to provide cost reduction all things that can enable Skullclamp
Your best strategy in a Dogmeat deck is to go wide, suiting up your other Dogs with cheap Auras and Equipment so you can generate some Junk and trade it in for more cards next turn
This means of course, that the rarer cards are going to be worth more money, but which ones are currently selling the best online
Some of the reasons include the availability of the franchise around the world, the consistency of the whole concept and the kid-friendly idea that was completely new and original when it first came out (although it had some similar predecessors)
We don't play them, we don't do those things
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