Rust Monster

First strike
Sacrifice an artifact: This creature gets +2/+0 until end of turn.

Crime Novelist

Whenever you sacrifice an artifact, put a +1/+1 counter on this creature and add {R}.

Ravenous Intruder

Sacrifice an artifact: This creature gets +2/+2 until end of turn.

Reckless Fireweaver

Whenever an artifact you control enters, this creature deals 1 damage to each opponent.

Animation Module

Whenever one or more +1/+1 counters are put on a permanent you control, you may pay {1}. If you do, create a 1/1 colorless Servo artifact creature token.
{3}, {T}: Choose a counter on target permanent or player. Give that permanent or player another counter of that kind.

Tormenting Voice

As an additional cost to cast this spell, discard a card.
Draw two cards.

Altar of the Brood

Whenever another permanent you control enters, each opponent mills a card.

Mountain

Hope of Ghirapur

Flying
Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells.

Demand Answers

As an additional cost to cast this spell, sacrifice an artifact or discard a card.
Draw two cards.