Things like Echo of Eons is great in the format, but Timetwister would be too good
This is the epitome of a powerful warp card, because you can either FlickerFlicker it, draw a card and put some big haymaker onto the battlefield for free, or you might want to repeat the same process but add to your land count instead, thus making sure your next go will cheat out the huge permanent you couldn't earlier
Halana and Alena, Partners Halana and Alena, Partners generates lots of value while on the battlefield and must be answered almost immediately
The set also features brand new cards, including Lugia ex, Ho-Oh ex, Suicune ex, and a version of Mr
Dont get me wrong, Shatterstorm coming to green was great when Mirrodin Besieged came out, and I played this card a fair bit in Commanders early years
the real prize is pushing combat damage via trample