Spellshapers are generally mana-heavy, but Undertaker gives you a lot of freedom in what you discard, allowing you to switch cards in your hand and graveyard as needed
All of this changed in 2021, when The Pokmon Company began drastically increasing TCG production to combat the shortage problems
These combine to form a 40-card deck, and you keep the cards (about 22 non-basics) as a reward
Miirym, Sentinel Wyrm Miirym, Sentinel Wyrm is a very strong card and would likely top this list if it werent built for a specific type of deck
Weakness / Resistance / Retreat Cost: Yx2 / None / 4
Boromir is also a decent threat on its own and can protect your other Creatures from board wipes or targeted removal, which is especially important when trying to win with a Creature equipped with Colossus Hammer