Metallic Rebuke

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you’re done activating mana abilities pays for .)
Counter target spell unless its controller pays .

Purphoros, God of the Forge

Indestructible
As long as your devotion to red is less than five, Purphoros isn’t a creature.
Whenever another creature enters the battlefield under your control, Purphoros deals 2 damage to each opponent.
: Creatures you control get +1/+0 until end of turn.

Yeva’s Forcemage

When Yeva’s Forcemage enters the battlefield, target creature gets +2/+2 until end of turn.

Mortarpod

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.)
Equipped creature gets +0/+1 and has “Sacrifice this creature: This creature deals 1 damage to any target.”
Equip

Vampire Hexmage

First strike
Sacrifice Vampire Hexmage: Remove all counters from target permanent.

Assemble the Legion

At the beginning of your upkeep, put a muster counter on Assemble the Legion. Then create a 1/1 red and white Soldier creature token with haste for each muster counter on Assemble the Legion.

Revel in Riches

Whenever a creature an opponent controls dies, create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)
At the beginning of your upkeep, if you control ten or more Treasures, you win the game.

Tireless Tracker

Whenever a land enters the battlefield under your control, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.

Diminish

Target creature has base power and toughness 1/1 until end of turn.

Deadeye Tormentor

Raid — When Deadeye Tormentor enters the battlefield, if you attacked this turn, target opponent discards a card.

Courser of Kruphix

Play with the top card of your library revealed.
You may play lands from the top of your library.
Whenever a land enters the battlefield under your control, you gain 1 life.

Sandstone Oracle

Flying
When Sandstone Oracle enters the battlefield, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference.

Festering Newt

When Festering Newt dies, target creature an opponent controls gets -1/-1 until end of turn. That creature gets -4/-4 instead if you control a creature named Bogbrew Witch.

Shining Armor

Flash
When Shining Armor enters the battlefield, attach it to target Knight you control.
Equipped creature gets +0/+2 and has vigilance.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Fatal Push

Destroy target creature if it has converted mana cost 2 or less.
Revolt — Destroy that creature if it has converted mana cost 4 or less instead if a permanent you controlled left the battlefield this turn.

Shining Armor

Flash
When Shining Armor enters the battlefield, attach it to target Knight you control.
Equipped creature gets +0/+2 and has vigilance.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Garruk, Cursed Huntsman

0: Create two 2/2 black and green Wolf creature tokens with “When this creature dies, put a loyalty counter on each Garruk you control.”
−3: Destroy target creature. Draw a card.
−6: You get an emblem with “Creatures you control get +3/+3 and have trample.”

Garruk, Cursed Huntsman

0: Create two 2/2 black and green Wolf creature tokens with “When this creature dies, put a loyalty counter on each Garruk you control.”
−3: Destroy target creature. Draw a card.
−6: You get an emblem with “Creatures you control get +3/+3 and have trample.”