Flying
You may collect evidence 10 rather than pay the mana cost for spells you cast. (To collect evidence 10, exile cards with total mana value 10 or greater from your graveyard.)

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
Sacrifice another creature: Surveil 1. Activate only once each turn.
Max speed — Whenever a nontoken creature you control dies, create a tapped 2/2 black Zombie creature token.

This land enters tapped.
When this land enters, you gain 1 life.
: Add or .

Whenever a creature you control attacks alone, it gains deathtouch and lifelink until end of turn. Put a dread counter on this enchantment. Then if there are three or more dread counters on it, transform it.

Whenever Théoden or another Human you control enters, target creature gains double strike until end of turn.

When this creature enters, you may sacrifice a creature or land. If you do, put two +1/+1 counters on this creature.

Battalion — Whenever this creature and at least two other creatures attack, put a +1/+1 counter on this creature.

Defender, reach
: This creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy this creature.)

Create five 1/1 white Human creature tokens. If this spell was cast from a graveyard, create ten of those tokens instead.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Sacrifice this creature: Creatures you control gain indestructible until end of turn.

When this creature enters, draw a card for each opponent who controls fewer creatures than you.

Trample
As this creature enters, exile any number of creature cards from your graveyard.
Sutured Ghoul's power is equal to the total power of the exiled cards and its toughness is equal to their total toughness.

Flying
When this creature enters, destroy all Walls your opponents control.
Whenever this creature attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

: Add for each counter on Nardole. Spend this mana only to cast noncreature spells.
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
Doctor's companion (You can have two commanders if the other is the Doctor.)

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Target creature you control deals damage equal to its power to target creature or planeswalker you don't control.

Enchant creature
Enchanted creature gets +1/+0.
: Regenerate enchanted creature.

When this creature enters, create a Map token. (It's an artifact with ", , Sacrifice this token: Target creature you control explores. Activate only as a sorcery.")
If a creature you control would explore, instead it explores, then it explores again.

Return target black creature card from your graveyard to your hand.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

This land enters tapped.
: Add .
Cycling (, Discard this card: Draw a card.)