Leela, Sevateem Warrior

Whenever an opponent draws a card except the first one they draw in each of their draw steps, put a +1/+1 counter on Leela, Sevateem Warrior.
Doctor’s companion (You can have two commanders if the other is the Doctor.)

Become the Pilot

Enchant noncommander creature
You control enchanted creature.
Enchanted creature gets +2/+2 and can’t be blocked unless it’s attacking its owner or a permanent its owner controls.

Become the Pilot

Enchant noncommander creature
You control enchanted creature.
Enchanted creature gets +2/+2 and can’t be blocked unless it’s attacking its owner or a permanent its owner controls.

Nyssa of Traken

You have no maximum hand size.
Sonic Booster — Whenever Nyssa of Traken attacks, sacrifice X artifacts. When you sacrifice one or more artifacts this way, tap up to X target creatures and you draw X cards.
Doctor’s companion (You can have two commanders if the other is the Doctor.)

Sundering Titan

When Sundering Titan enters or leaves the battlefield, choose a land of each basic land type, then destroy those lands.

Historian’s Boon

Whenever Historian’s Boon or another nontoken enchantment enters the battlefield under your control, create a 1/1 white Soldier creature token.
Whenever the final chapter ability of a Saga you control triggers, create a 4/4 white Angel creature token with flying and vigilance.

Deadly Dispute

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Snowborn Simulacra

Conjure a duplicate of each of X target nontoken permanents into your hand. Those cards perpetually gain “You may spend mana as though it were mana of any color to cast this spell.” If X is 5 or more, you may put one of them from your hand onto the battlefield.

Extraction Specialist

Lifelink
When Extraction Specialist enters the battlefield, return target creature card with mana value 2 or less from your graveyard to the battlefield. That creature can’t attack or block for as long as you control Extraction Specialist.

Nurturing Presence

Enchant creature
Enchanted creature has “Whenever a creature enters the battlefield under your control, this creature gets +1/+1 until end of turn.”
When Nurturing Presence enters the battlefield, create a 1/1 white Spirit creature token with flying.

Gladewalker Ritualist

Changeling (This card is every creature type.)
Whenever another creature named Gladewalker Ritualist enters the battlefield under your control, draw a card.

Dread Rider

, , Exile a creature card from your graveyard: Target opponent loses 3 life.

Piper of the Swarm

Rats you control have menace.
, : Create a 1/1 black Rat creature token.
, , Sacrifice three Rats: Gain control of target creature.

Piper of the Swarm

Rats you control have menace.
, : Create a 1/1 black Rat creature token.
, , Sacrifice three Rats: Gain control of target creature.

Piper of the Swarm

Rats you control have menace.
, : Create a 1/1 black Rat creature token.
, , Sacrifice three Rats: Gain control of target creature.

Piper of the Swarm

Rats you control have menace.
, : Create a 1/1 black Rat creature token.
, , Sacrifice three Rats: Gain control of target creature.