Even if its just a handful of friends, or a couple of siblings playing along with you, having a community is just as essential to Pokmon games as the Pokmon themselves
in the GY allows you to trigger twice your effects, making you draw 4 cards total and deal more damage in Battle Phase
(Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.) If one or more outlaws you control die at the same time that Rakish Crew leaves the battlefield, its last ability triggers for each of those outlaws
these cards arent unplayable
The big deal about Tiamat is that it also influences the prices of other dragon creatures in MtG
In deckbuilding, kindred strategies come from playing as many versions of one card type as possible, but they also do plenty of work for Magics storytelling through its game pieces