Darksteel Sentinel [Scars of Mirrodin] Psychic[-30] Set: Sword & Shield: Silver

Set: Sword & Shield: Silver Tempest Type: Fighting Rarity: Secret Rare Retreat cost: Colorless

Set: Commander 2014 Type: Legendary Planeswalker — Nixilis Rarity: Mythic Cost: {3}{B}{B} +2: Each opponent loses 1 life

Whenever one or more artifact creatures you control deal combat damage to a player

Set: Time Spiral Remastered Type: Sorcery // Sorcery Rarity: Rare Cost: {1}{R} // {5}{R} Destroy target land you control and target land you don't control

but sending thrull couriers to do so is cheap and entertaining

Darksteel Sentinel [Scars of Mirrodin] Psychic[-30] Set: Sword & Shield: SilverSet: Scars of Mirrodin Type: Artifact Creature Golem Rarity: Uncommon Cost: {6} Flash (You may cast this spell any time you could cast an instant.) Vigilance Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)