Add the fact that its ability, Fabled Luster, prevents Arceus EX from being affected by Sleep, Paralysis, Poison, Burn, and Confusion, it has an auto Lum Berry of its own which even works always
I noticed the overall Azurite Sea theme was woven throughout the decks rather than the individual decks having themes of their own
They become a keyword soup legend with an activated ability that moves your lands into the center of the table with chunks of four +1/+1 counters
6 Enlightened Tutor Some of the best tutors in Magic have specific conditions on what they can grab
Then theres the bonus that goaded creatures cant attack you, so you get to sit back and watch your opponents duke it out, opening up the board for you to attack with fewer blockers