Flying
Ward—Pay 2 life.
Whenever an opponent loses life for the first time during each of their turns, put a +1/+1 counter on Valgavoth and draw a card.

Flash
You may cast legendary spells and artifact spells as though they had flash.
If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Untap all artifacts you control during each other player's untap step.

As Gollum enters, choose odd or even. (Zero is even.)
Whenever an opponent casts a spell with mana value of the chosen quality, choose one that hasn't been chosen —
• Put a +1/+1 counter on Gollum.
• Each opponent loses 2 life and you gain 2 life.
• Draw a card.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

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

This land enters tapped unless you control two or fewer other lands.
: Add or .

You may look at the top card of your library any time.
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.
, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Throw ... — , Unattach an Equipment from Captain America: He deals damage equal to that Equipment's mana value divided as you choose among one, two, or three targets.
... Catch — At the beginning of combat on your turn, attach up to one target Equipment you control to Captain America.

(: Add .)

+2: Create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")
+1: Target artifact or creature loses all abilities and becomes a green Elk creature with base power and toughness 3/3.
−5: Exchange control of target artifact or creature you control and target creature an opponent controls with power 3 or less.

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Whenever a card is exiled because it was warped, put three time counters on it. It gains suspend.

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Destroy all creatures. They can't be regenerated.

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)
Whenever you tap a Swamp for mana, add an additional .

Destroy all creatures. They can't be regenerated.

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.

As an additional cost to cast this spell, sacrifice a creature.
Search your library for a card, put that card into your hand, then shuffle.

If you control a commander, you may cast this spell without paying its mana cost.
Creatures you control gain indestructible until end of turn.