Serum Visions

Island

Condescend

Counter target spell unless its controller pays {X}. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Seat of the Synod

March of the Machines

Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value. (Equipment that's a creature can't equip a creature.)

Mountain

Darksteel Pendant

Indestructible (Effects that say "destroy" don't destroy this artifact.)
{1}, {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Mana Leak

Counter target spell unless its controller pays {3}.

Thirst for Knowledge

Draw three cards. Then discard two cards unless you discard an artifact card.

Pyroclasm

Pyroclasm deals 2 damage to each creature.

Electrostatic Bolt

Electrostatic Bolt deals 2 damage to target creature. If it's an artifact creature, Electrostatic Bolt deals 4 damage to it instead.

Darksteel Ingot

Indestructible (Effects that say "destroy" don't destroy this artifact.)
{T}: Add one mana of any color.

Future Sight

Play with the top card of your library revealed.
You may play lands and cast spells from the top of your library.

Great Furnace

Obliterate

This spell can't be countered.
Destroy all artifacts, creatures, and lands. They can't be regenerated.