Undercity Upheaval Turns out all you need to do is take Upheaval to the undercity to make it a reasonable card
Looking eight cards deep whenever it enters or attacks makes it easy to maintain pressure without running out of threats, and pairs especially well with haste enablers like Dragonlord Kolaghan or Karrthus, Tyrant of Jund, letting you attack right away and get immediate full value
Energy is the last named mechanic, denoted by a new symbol on cardssimilar to the existing mana symbols
Whenever this creature attacks, you may pay
These are monsters that can be equipped to "Buster Blader" to act as "Floodgates" that prevent your opponent from doing certain things
Back when creatures used to suck, Survival let you play a very interesting and diverse mix of sucky creatures, which could be awesome when played at the perfect moment