, : Draw a card, then discard a card.

At the beginning of each player's draw step, that player puts the cards in their hand on the bottom of their library in any order, then draws that many cards.

At the beginning of each player's upkeep, that player chooses artifact, creature, land, or non-Aura enchantment. All nontoken permanents of that type phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Counter target spell or ability an opponent controls that targets a land you control. If a permanent's ability is countered this way, destroy that permanent.
Draw two cards.

As long as you control a Teferi planeswalker, Teferi's Sentinel gets +4/+0.

Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it.

When Teferi's Tutelage enters the battlefield, draw a card, then discard a card.
Whenever you draw a card, target opponent mills two cards. (They put the top two cards of their library into their graveyard.)

Whenever a creature you control attacks, it phases out at end of combat. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

Flash
When Teferi's Wavecaster enters the battlefield, you may search your library and/or graveyard for a card named Teferi, Timeless Voyager, reveal it, and put it into your hand. If you search your library this way, shuffle it.

[+1]: Draw a card. At the beginning of the next end step, untap up to two lands.
[−3]: Put target nonland permanent into its owner's library third from the top.
[−8]: You get an emblem with "Whenever you draw a card, exile target permanent an opponent controls."

Flash (You may cast this spell any time you could cast an instant.)
Creature cards you own that aren't on the battlefield have flash.
Each opponent can cast spells only any time they could cast a sorcery.

You may activate loyalty abilities of Teferi, Master of Time 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.

[+1]: Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.
[−1]: Untap up to four target permanents.
[−10]: You get an emblem with "You may activate loyalty abilities of planeswalkers you control on any player's turn any time you could cast an instant."
Teferi, Temporal Archmage can be your commander.

Each opponent can cast spells only any time they could cast a sorcery.
[+1]: Until your next turn, you may cast sorcery spells as though they had flash.
[−3]: Return up to one target artifact, creature, or enchantment to its owner's hand. Draw a card.

[+2]: Untap up to one target artifact or creature.
[−3]: You gain 2 life and draw two cards.
[−9]: Take an extra turn after this one.

[+1]: Draw a card.
[−3]: Put target creature on top of its owner's library.
[−8]: Each creature target opponent controls phases out. Until the end of your next turn, they can't phase in. (Treat them and anything attached to them as though they don't exist.)

Tek gets +0/+2 as long as you control a Plains, has flying as long as you control an Island, gets +2/+0 as long as you control a Swamp, has first strike as long as you control a Mountain, and has trample as long as you control a Forest.

: Put target permanent you own on the bottom of your library.

Tap target creature. Prevent all combat damage that would be dealt by that creature this turn. It doesn't untap during its controller's next two untap steps.

Whenever a player discards a card, you may pay . If you do, you may tap or untap target permanent.