One is a Green and White Human deck (or Witch, but not with that Creature type, the point is its based around the new coven mechanic), and the other is Blue and Black Zombie deck
I don't ever recall playing against the Grimeblotter or Woodlands, but the others have been played against me.
Then look up the logo in a list of Pokemon set symbols
Splinter, Radical Rat Splinter, Radical Rat has great stats for an Esper commander that you want to oversee a battlefield
Convoke Rules A keyword ability that lets you tap creatures rather than pay mana to cast a spell
You'll want a sorcery only spell base to lean into like red's discard to draw like Unexpected Windfall, exile to draw like Act on Impulse, and sorcery speed removal like Aftershock and Vandalblast