You may look at the top card of your library any time.
You may cast artifact spells and colorless spells from the top of your library.
, Pay 1 life: Exile the top card of your library.

First strike, protection from red

If a player would draw a card, that player exiles that card face up instead.
Each player may play lands and cast spells from among cards they exiled with this artifact this turn.

All lands have indestructible.

When Bumi enters, earthbend 1. (Target land you control becomes a 0/0 creature with haste that's still a land. Put a +1/+1 counter on it. When it dies or is exiled, return it to the battlefield tapped.)
Whenever Bumi attacks, put two +1/+1 counters on each land creature you control.

Whenever you put one or more +1/+1 counters on a creature you control, you may draw that many cards. Do this only once each turn.

Creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.)

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

Each player sacrifices X lands of their choice.

Exile target creature. Its controller gains life equal to its power.

Engulf — When this creature enters, exile target non-Ooze creature an opponent controls until this creature leaves the battlefield.
Dissolve — : Put target creature card with mana value X exiled with this creature into its owner's graveyard.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever you gain life, put a +1/+1 counter on target creature you control. It gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Nonwhite creatures with power 3 or greater don't untap during their controllers' untap steps.

Whenever a source you control deals damage to another player, put that many theft counters on this enchantment.
, Remove X theft counters from this enchantment: Search your library for a nonland card with mana value X, reveal it, put it into your hand, then shuffle.

(: Add .)

Flying
When this creature enters, draw three cards, then put two cards from your hand on top of your library in any order.
When this creature dies, shuffle it into its owner's library, then scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Whenever a creature becomes the target of a spell or ability, return that creature to its owner's hand. (It won't be affected by the spell or ability.)

Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Time Reversal.

You may activate loyalty abilities of Teferi on any player's turn any time you could cast an instant.
+1: Draw a card, then discard a card.
−3: Target creature you don't control phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)
−10: Take two extra turns after this one.

When Miles Morales enters, put a +1/+1 counter on each of up to two target creatures.
: Transform Miles Morales. Activate only as a sorcery.