In an early "Taste the Magic" column, Matt Cavotta reprinted part of the Mirrodin style guide
One currently OCG-only card, Overload Future Fusion, is a Continuous Spell that can reveal this card to mill a Skull Servant if the controller can't do much else
Furthermore, this brilliant phoenix's ability allows them to move 2 energy cards to a benched ally if Ho-Oh gets knocked out, resulting in great synergy and energy efficiency that is immensely convenient in a large number of situations
In gameplay terms, Apocalypse featured a bevy of enemy-colored gold cards, which hadn't been seen in Magic since Mirage block
Zamriel, Seraph of Steel Zamriel, Seraph of Steel is a legendary angel that gives all your equipped creatures indestructible, including itself