typically, theres 12 Leader cards per booster box of 24 packs
Terras focus in FF6 tends to be more on offensive fire spells, which would seem to fit more closely with Magic s burn mechanics than graveyard support
Played without support, it's a terrible card: spending 3 mana to cast a fragile creature, another mana to exile something, and then you need to wait at least another turn and pay 2 more mana and sacrifice it to cast a spell
While Un-sets (like Unglued, Unhinged, Unstable, Unsanctioned, and Unfinity) are playable Magic cards, they exist outside the typical tournament legality and feature whimsical, often rule-bending mechanics
It doesn't give you a shuffle effect, however, which makes Multiversal Passage a little worse in Legacy decks featuring Brainstorm
Although interestingly enough, the Seeing the success the previous round of the Go Big strategy (and specifically of Ob Nixilis), two different people submitted the same winning deck: Elspeth was able to kill most other people going big (with her destroy all creatures with power 4 or greater)