(: Add .)

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
: Add .

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

Creature tokens you control get +1/+1 and have vigilance.

First strike

Take an extra turn after this one.
If this card is in your opening hand, you may exile it. If you do, create four Time Walk token cards and shuffle them into your deck.

Counter target spell.

Flying
Modular 3 (This creature enters with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)
Whenever another artifact you control enters, target creature an opponent controls gets -1/-1 until end of turn.

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

Put target permanent on top of its owner's library.
Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

When Ambassador Blorpityblorpboop enters, you get {TK}{TK}{TK}, then you may put a sticker on a nonland permanent you own.
At the beginning of each combat, you may have Ambassador Blorpityblorpboop's base power become equal to the total power of all stickers on permanents you control and its base toughness become equal to those stickers' total toughness.

When this creature enters, target creature an opponent controls gets -3/-0 until end of turn.
Warp (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Whenever you cast an instant or sorcery spell that targets only Bill Potts or activate an ability that targets only Bill Potts, copy that spell or ability. You may choose new targets for the copy. This ability triggers only once each turn.
Doctor's companion (You can have two commanders if the other is the Doctor.)

As this creature enters, choose a color.
: Add .
: Add one mana of the chosen color.

Morph—Return two Islands you control to their owner's hand. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, draw two cards.

Whenever this creature becomes tapped, target opponent gains 2 life.
: Regenerate this creature.

: Add .
: Put an hour counter on this artifact.
At the beginning of each upkeep, put an hour counter on this artifact.
When the twelfth hour counter is put on this artifact, shuffle your hand and graveyard into your library, then draw seven cards. Exile this artifact.

Vigilance
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, untap it.

Counter target spell with mana value X. (For example, if that spell's mana cost is , X is 5.)

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