Chitin Gravestalker (DFT 79)

Creature — Insect Warrior • Mana cost: {5}{B} • Aetherdrift • Common

This spell costs {1} less to cast for each artifact and/or creature card in your graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)

The Speedbrood doesn't differentiate between salvage and carrion.

Illustrated by Slawomir Maniak.