mtg warhammer commander decks collector's edition Magic: the Gathering Universe Beyond 40,000 Deck Bundle 000 factions and strategies as possible Magic the Gathering Warhammer 40k

These flip cards acted very much like transforming double-faced cards behave today, but back in the early 2000's Wizards of the Coast was still hesitant to print anything other than the standard Magic back on the backside of a card

Maybe Arena of the Ancients being a 30-year-old card that cares about legendary creatures was enough to catch their attention

It can tap for a generic mana, allowing you to use it as a land until you need to destroy a land an opponent plays

Cards that stack well also synergize well with clones

Yeslike the flavor suggestsyou can use it to save your creatures and artifacts from whatever would destroy them