The crowning glory of every collector booster is the foil alternate art rare or mythic card with a roughly 48% chance that its also a Mystical Archive card, with a further 50% chance of that card being a Japanese variant
That has a lot to do with how the franchise swept the whole world in Poke Mania and the great marketing through several different venues, ranging from anime to mobile games, and adding more with each installment
(Benching either Pokmon ends this effect.) Flip a coin
Synergizing with the previous versions of Kellan with adventures, literally showing how his past strengthens him and makes him into the character he is now, is brilliant
It also gains the uber-powerful annihilator keyword, which forces your foe to sacrifice permanents based on the number of +1/+1 counters on Ulamog
In Pioneer, we can play OG Marwyn, the Nurturer alongside Kami of Whispered Hopes to have eight copies of our key combo piece, which means we should have one in our opening hand in most games, and if the first one dies, the odds of drawing another one aren't that bad