Chitin Gravestalker
Creature — Insect Warrior
This spell costs 
less to cast for each artifact and/or creature card in your graveyard.
Cycling 
The Speedbrood doesn't differentiate between salvage and carrion.
Slawomir Maniak
Aetherdrift (DFT)
• #79Rulings
If a card in your graveyard is an artifact creature card, count it only once when determining the cost reduction for this card’s first ability.
(wotc • 2025-02-07)
This card’s first ability can’t reduce colored mana in its cost, so the cost can’t be reduced below {B} this way.
(wotc • 2025-02-07)
Rulings
If a card in your graveyard is an artifact creature card, count it only once when determining the cost reduction for this card’s first ability.
(wotc • 2025-02-07)
This card’s first ability can’t reduce colored mana in its cost, so the cost can’t be reduced below {B} this way.
(wotc • 2025-02-07)