Fifth Dawn

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

Add {W}{U}{B}{R}{G}.

{2}: The next time an artifact source of your choice would deal damage to you this turn, prevent that damage.

{R}, Sacrifice two artifacts: Destroy target artifact.

Haste Iron-Barb Hellion can't block.

Flying (This creature can't be blocked except by creatures with flying or reach.) {R}: Furnace Whelp gets +1/+0 until end of turn.

Feedback Bolt deals damage to target player or planeswalker equal to the number of artifacts you control.

Target opponent reveals their hand. You choose an artifact card from it. That player discards that card.

Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats. A deck can have any number of cards named Relentless R...

Nim Grotesque gets +1/+0 for each artifact you control.

You draw two cards and you lose 2 life.

Flying Whenever a player casts a spell, you lose 1 life.

Destroy target creature. It can't be regenerated. You lose life equal to that creature's toughness.

{U}, {T}: Return target permanent you control to its owner's hand.

{1}{W}: Return target artifact card with mana value 1 or less from your graveyard to your hand.

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

Plasma Elemental can't be blocked.

Counter target spell. If that spell is countered this way, its controller may put a creature card from their hand onto the battlefield.

Whenever you cast an instant or sorcery spell, you may pay {1}. If you do, scry 2. (Look at the top two cards of your library, then put any number ...

Enchant artifact Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost."

Destroy target blocking creature.

Search your library for an Equipment card, reveal that card, put it into your hand, then shuffle.

When you control no other artifacts, sacrifice Synod Centurion.

Flying, double strike