A one-sided mana doubler that existed before the likes of Caged Sun or Crypt Ghast, Nirkana Revenant fueled many a powerful X spell while also being able to put opponents down with the aid of a Whispersilk Cloak or Akromas Memorial
FromTheShire: This is stupid good even if simply played fairly, but there are multiple ways you can do things like cast this on turn 4 with enough mana floating to immediately sacrifice it to emerge one of the Ulamogs
[Deck Title= Rakdos Aggro Baker Neenan] [Creatures] 4 Bomat Courier 3 Kitesail Freebooter 4 Glint-Sleeve Siphoner 4 Goblin Rabblemaster 4 Knight of the Ebon Legion [/Creatures] [Spells] 3 Fatal Push 4 Smugglers Copter 4 Thoughtseize 3 Kolaghans Command 1 Harnessed Lightning 3 Dreadbore [/Spells] [Lands] 4 Aether Hub 2 Foreboding Ruins 4 Blood Crypt 5 Mountain 8 Swamp [/Lands] [Sideboard] 2 Liliana, the Last Hope 2 Collective Brutality 2 Rending Volley 2 Hazoret the Fervent 2 Kalitas, Traitor of Ghet 2 Grafdiggers Cage 1 Duress 2 Glorybringer [/Sideboard] [/Deck] The value of the looting from [Card]Smugglers Copter[/Card] shines even more in a tap-out disruptive aggro shell thats obligated to play more narrow removal and less generic disruption
The Timber Protectors also have a second use
Store Your Cards Safely Even real cards can develop signs of wear that can obscure authenticity checks
Then you can exile this to return all of them to your hand, with a cost of five mana, but then only if you control at least six artifacts