This does seem like a fine addition to Agatha's Soul Cauldron decks
From Cute to Brute Delver of Secrets One of blues most famous 1-drops, Delver of Secrets starts as a fragile 1/1 wizard that can transform into the dangerous Insectile Aberration if you reveal an instant or sorcery from the top of your library
Kaalia of the Vast One of the best Mardu cards in the game, Kaalia of the Vast is among the more popular commanders, and given the creature types it cares about, I can see why
If you're opening Collector Boosters, your chances increase significantly, as they contain a minimum of three Mystical Archive cards per pack
Why collectors want it: Premium gold finish Rarest Pikachu variant in the set Strong display appeal Grading potential: High Alolan Exeggutor ex Hyper Rare (#248) A fun, unmistakable card, the Alolan Exeggutor ex Hyper Rare brings personality and a top-tier rarity to the set