Darksteel Reactor [Darksteel] 59 Set: Neo Revelation Unlimited Type:

Set: Neo Revelation Unlimited Type: Water Rarity: Rare Retreat cost: Colorless

Set: Crossroads of Chaos Card type: Dragon / Synchro / Effect Rarity: Ultra Rare Attack: 2400 Defense: 1800 1 Tuner + 1 or more non-Tuner monsters

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Ultra Rare Attack: 100 Defense: 100 Effect: If this card is in your Graveyard during your Standby Phase and there are no Spell or Trap Cards on your side of the field

Set: HeartGold & SoulSilver: Call of Legends Type: Metal Rarity: Promo

I'd be terrified

Darksteel Reactor [Darksteel] 59 Set: Neo Revelation Unlimited Type:Set: Darksteel Type: Artifact Rarity: Rare Cost: {4} Indestructible (Effects that say "destroy" don't destroy this artifact.) At the beginning of your upkeep, you may put a charge counter on Darksteel Reactor. When Darksteel Reactor has twenty or more charge counters on it, you win the game.