Phyrexian Walker

Meria, Scholar of Antiquity

Tap an untapped nontoken artifact you control: Add {G}.
Tap two untapped nontoken artifacts you control: Exile the top card of your library. You may play it this turn.

Ornithopter

Everflowing Chalice

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)
This artifact enters with a charge counter on it for each time it was kicked.
{T}: Add {C} for each charge counter on this artifact.

Memnite

Welding Jar

Sacrifice this artifact: Regenerate target artifact.

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Darksteel Relic

Indestructible (Effects that say "destroy" don't destroy this artifact.)