You might also be able to build Boros equipment if your lucky stars line up since no one else will want Sram, Senior Edificer or Valduk, Keeper of the Flame
If any opponent has at least 10 Lore points, Donald Duck adds 6 to his Strength value, giving him 9 Strength overall
Urza's limited format was definitely a swing block - games often went back and forth
Other popular Grixis strategies include Treasures, which at this point Im pretty sure show up in spellslinger and any combination of colors that can play them
For some reason, Nadu is not very specific when it comes to the things that trigger its ability, meaning that you can attack with Derevi in play and use the untap triggers from the combat damage to untap all of your creatures
: Add one mana of any color to your mana pool