arceus pokemon card I officially own one of every english cards in existence!🎉 : r/PokemonTCG Colorless Retreat Cost The Cards Of Pokémon TCG:

Its back is a Magic: the Gathering card, the border is gold rather than yellow, and the front of the card is foiled, a new technique for Wizards of the Coast at the time

And as someone who has cast Boom // Bust on a Darksteel Citadel plenty of times, there are a lot of options to choose from

Plus, some cards (such as [c]Ox of Agonas[/c], which well see later down this list [spoiler!]), work better from your graveyard, so discarding them wont even feel like a downside

However, I think most of the time when this comes up later in a game it could be better to dump your hand and then refill it and put your graveyard back into your deck