Pioneer

Players have no maximum hand size. {X}{X}, {T}: Each player draws X cards. {2}{U}, {T}: Each opponent puts a number of cards equal to the number of...

[0]: Put a loyalty counter on each red planeswalker you control. [0]: Create two 1/1 red Elemental creature tokens. They gain haste. Sacrifice them...

({T}: Add {G} or {U}.) As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

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

{T}: Add {C}. {1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abili...

Sunpetal Grove enters the battlefield tapped unless you control a Forest or a Plains. {T}: Add {G} or {W}.

Whenever another Elf enters the battlefield under your control, put a +1/+1 counter on Marwyn, the Nurturer. {T}: Add an amount of {G} equal to Mar...

Whenever a Dragon enters the battlefield under your control, put a gold counter on Dragon's Hoard. {T}, Remove a gold counter from Dragon's Hoard: ...

{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle your libr...

Whenever Hapatra, Vizier of Poisons deals combat damage to a player, you may put a -1/-1 counter on target creature. Whenever you put one or more -...

Inspiring Vantage enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {R} or {W}.

Counter target spell. Create X Treasure tokens, where X is that spell's converted mana cost. (They're artifacts with "{T}, Sacrifice this artifact:...

Yorvo, Lord of Garenbrig enters the battlefield with four +1/+1 counters on it. Whenever another green creature enters the battlefield under your c...

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 coun...

{4}, {T}: Put a charge counter on Magistrate's Scepter. {T}, Remove three charge counters from Magistrate's Scepter: Take an extra turn after this ...

Haste Whenever one or more creatures you control attack, add that much mana in any combination of {R} and/or {G}. Until end of turn, you don't lose...

Protection from blue (This creature can't be blocked, targeted, dealt damage, or enchanted by anything blue.) Whenever Goblin Piledriver attacks, i...

Menace At the beginning of your upkeep, each player draws a card and loses 1 life.

Electrodominance deals X damage to any target. You may cast a card with converted mana cost X or less from your hand without paying its mana cost.

Whenever you pay life, put that many blood counters on Font of Agonies. {1}{B}, Remove four blood counters from Font of Agonies: Destroy target cre...

Each player loses half their life, then discards half the cards in their hand, then sacrifices half the creatures they control. Round up each time.

Other Goblins you control get +1/+1. Sacrifice a Goblin: Destroy target artifact.

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

Flying At the beginning of your upkeep, each opponent draws a card.