Pioneer

Defender When Akroan Horse enters the battlefield, an opponent gains control of it. At the beginning of your upkeep, each opponent creates a 1/1 wh...

When Electrostatic Pummeler enters the battlefield, you get {E}{E}{E} (three energy counters). Pay {E}{E}{E}: Electrostatic Pummeler gets +X/+X unt...

{T}: Add {W} or {B}. {W}{B}: Orzhov Keyrune becomes a 1/4 white and black Thrull artifact creature with lifelink until end of turn.

Equipped creature has double strike. (It deals both first-strike and regular combat damage.) Equip {2} ({2}: Attach to target creature you control....

({T}: Add {W}.)

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Defender {2}: Amaranthine Wall gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chose...

Multicolored creatures you control get +1/+1.

Flying Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

You may look at the top card of your library any time. You may cast artifact spells and colorless spells from the top of your library. {T}, Pay 1 l...

({T}: Add {W}.)

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{3}, {T}, Sacrifice Explosive Apparatus: It deals 2 damage to any target.

{T}: Add {G} or {W}. {G}{W}: Selesnya Keyrune becomes a 3/3 green and white Wolf artifact creature until end of turn.

White creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, create a 1/1 white Warrior creature token with vigilance.

Whenever you cast a red spell or a Mountain enters the battlefield under your control, you gain 1 life.

At the beginning of your upkeep, sacrifice Goblin Boom Keg. When Goblin Boom Keg is put into a graveyard from the battlefield, it deals 3 damage to...

{T}: Add {B} or {R}. {B}{R}: Rakdos Keyrune becomes a 3/1 black and red Devil artifact creature with first strike until end of turn.

{T}: Add {C}. {3}{W}, {T}, Sacrifice Blighted Steppe: You gain 2 life for each creature you control.

When Sparring Construct dies, put a +1/+1 counter on target creature you control.

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

Whenever you cast a black spell or a Swamp enters the battlefield under your control, you gain 1 life.

Mage-Ring Responder doesn't untap during your untap step. {7}: Untap Mage-Ring Responder. Whenever Mage-Ring Responder attacks, it deals 7 damage...