The worst grade you can get for centering is a 4 but if the card exhibits the features of a higher grader except centering, you'll have the chance at a grade 9 with the OC (Off-center) qualifier
1 unique card Shadowy Spellbind As long as this Pokmon is in the Active Spot, your opponent can't use any Supporter cards from their hand
Since you'll have so many Rats on the battlefield at all times, Coat of Arms will give stat boosts to all of them for each other Rat on the battlefield
Every aspect you can consider, Im thinking about that all day long and losing sleep over it sometimes. He says one part of that is hitting staple cards people are using a lot already, but also balancing that with some tastemaking picks that go off the beaten path when it makes sense, even if the appeal of the latter may be narrower as a result
And for cards wanting to come back from your graveyard, namely creature kill and countermagic, Spell Counter and Kill Destroy are pretty strong