Cinder Pyromancer

: Cinder Pyromancer deals 1 damage to target player or planeswalker.
Whenever you cast a red spell, you may untap Cinder Pyromancer.

Mistmeadow Witch

: Exile target creature. Return that card to the battlefield under its owner’s control at the beginning of the next end step.

Keldon Vandals

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Keldon Vandals enters, destroy target artifact.

Myr Galvanizer

Other Myr creatures you control get +1/+1.
, : Untap each other Myr you control.

Pentavus

Pentavus enters with five +1/+1 counters on it.
, Remove a +1/+1 counter from Pentavus: Create a 1/1 colorless Pentavite artifact creature token with flying.
, Sacrifice a Pentavite: Put a +1/+1 counter on Pentavus.

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners’ hands.

Serra Angel

Flying
Vigilance (Attacking doesn’t cause this creature to tap.)

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Baneslayer Angel

Flying, first strike, lifelink, protection from Demons and from Dragons

Vengeful Archon

Flying
: Prevent the next X damage that would be dealt to you this turn. If damage is prevented this way, Vengeful Archon deals that much damage to target player or planeswalker.

Traumatize

Target player mills half their library, rounded down.

Dragon Breath

Enchant creature
Enchanted creature has haste.
: Enchanted creature gets +1/+0 until end of turn.
When a creature with mana value 6 or greater enters, you may return Dragon Breath from your graveyard to the battlefield attached to that creature.

Urborg Syphon-Mage

, , Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way.

Cinder Pyromancer

: Cinder Pyromancer deals 1 damage to target player or planeswalker.
Whenever you cast a red spell, you may untap Cinder Pyromancer.

Mahamoti Djinn

Flying (This creature can’t be blocked except by creatures with flying or reach.)

Hellcarver Demon

Flying
Whenever Hellcarver Demon deals combat damage to a player, sacrifice all other permanents you control and discard your hand. Exile the top six cards of your library. You may cast any number of spells from among cards exiled this way without paying their mana costs.

Venerated Teacher

When Venerated Teacher enters, put two level counters on each creature you control with level up.

Urborg Syphon-Mage

, , Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way.

Quest for the Holy Relic

Whenever you cast a creature spell, you may put a quest counter on Quest for the Holy Relic.
Remove five quest counters from Quest for the Holy Relic and sacrifice it: Search your library for an Equipment card, put it onto the battlefield, attach it to a creature you control, then shuffle.

Blood Seeker

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Myr Enforcer

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