Darksteel

Scavenging Scarab can't block.

Destroy target enchantment and all other enchantments with the same name as that enchantment.

Whenever Tel-Jilad Wolf becomes blocked by an artifact creature, Tel-Jilad Wolf gets +3/+3 until end of turn.

{W}, {T}: Tap target creature.

Flying Discard an artifact card: Return Neurok Prodigy to its owner's hand.

Essence Drain deals 3 damage to any target and you gain 3 life.

Affinity for Mountains (This spell costs {1} less to cast for each Mountain you control.) Haste

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

{T}, Sacrifice an artifact: Add {R}{R}.

Affinity for Islands (This spell costs {1} less to cast for each Island you control.) Flying

Protection from artifacts

Tap all artifacts.

Inflame deals 2 damage to each creature dealt damage this turn.

Flying Drill-Skimmer has shroud as long as you control another artifact creature. (It can't be the target of spells or abilities.)