Cards like the Great Hall of the Citadel support decks with legendary spells, providing two mana of any color when tapped, and an additional mana of any color is also paid
If youre used to games like Yu-Gi-Oh, Pokemon, or Magic: The Gathering, youll find that the Digimon TCG rules are a lot more streamlined
This card previously appeared in the Ultra Deck, The Three Brothers
Emerald can also be aggro itself, especially with the popular Legendary card, Beast: Relentless, which readies every time an enemy character is damaged
This card works fantastically with massive commanders like Zhulodok, Void Gorger or commanders that play faster by reducing casting costs like Animar, Soul of Elements
You need to recast them, but that can be a boon for cards with cast triggers like Emrakul, the Promised End