You draw a card and you lose 1 life.
Amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

Trample

Coram gets +X/+0, where X is the greatest power among creature cards in all graveyards.
Whenever Coram attacks, each player mills a card.
During each of your turns, you may play a land and cast a spell from among cards in graveyards that were put there from libraries this turn.

When this creature enters, creatures you control get +1/+1 until end of turn.

Enchant planeswalker
Enchanted planeswalker has "[+1]: Look at the top four cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
Whenever a nontoken creature you control enters, put a loyalty counter on enchanted planeswalker.

If exactly one creature is attacking, you may pay rather than pay this spell's mana cost.
Destroy target attacking creature without flying.

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
: Add or .

This land enters tapped. As it enters, choose a color other than blue.
: Add or one mana of the chosen color.

This spell has flash as long as there are five or more mana values among cards in your graveyard.
Return target creature card from your graveyard to the battlefield.

: Until end of turn, this creature has base power 4 and gains trample.

Flying, haste
: The next instant or sorcery spell you cast this turn costs less to cast, where X is the number of Wizards you control as this ability resolves.

Rose Tyler gets +1/+1 for each time counter on it.
Bad Wolf — Whenever Rose Tyler attacks, put a time counter on it for each suspended card you own and each other permanent you control with a time counter on it.
Doctor's companion (You can have two commanders if the other is the Doctor.)

Equipped creature has flying.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

When this creature enters, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")
Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Flying
Whenever another permanent you control leaves the battlefield, if it had counters on it, investigate. (Create a Clue artifact token with ", Sacrifice this token: Draw a card.")

When this creature enters, you draw a card and you lose 1 life.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Flying
Whenever you attack with one or more creatures, target player mills that many cards. (To mill a card, a player puts the top card of their library into their graveyard.)
: Put this card from your graveyard into your library second from the top.

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

Flying
Whenever this creature becomes the target of a spell you control, draw a card.