Return all artifacts target player owns to their hand.

Flying
When Aerid Konstrari enters or dies, create a Heartwood token. (It's a red and green artifact with ": Add or .")
: Create a Heartwood token. Then Aerid Konstrari gets +X/+0 until end of turn, where X is the number of artifacts you control.

Whenever another nontoken artifact you control enters, you may pay . If you do, create a token that's a copy of it. If the token isn't a creature, it becomes a 2/2 Robot Villain creature in addition to its other types.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, draw a card.

Trample
When you cast this spell and whenever this creature attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token.
Unearth

When this artifact enters, if it was cast, target opponent creates a token that's a copy of it.
Whenever an opponent who controls an artifact named Wedding Ring draws a card during their turn, you draw a card.
Whenever an opponent who controls an artifact named Wedding Ring gains life during their turn, you gain that much life.

Search your library for a card, put that card into your graveyard, then shuffle.

Artifacts and enchantments you control have shroud. (They can't be the targets of spells or abilities.)

Creatures you control get +1/+1.
Whenever you tap a land for mana, add one mana of any type that land produced.

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.

Flash
When this creature enters, copy target instant or sorcery spell. You may choose new targets for the copy.

Commander creatures you own have "Whenever you cast a spell from exile, this creature deals damage equal to that spell's mana value to target opponent."

At the beginning of each player's upkeep, that player discards a card at random.

: Add one mana of any type that a land you control could produce.

: Add .
, , Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

: Add one mana of any color in your commander's color identity.

Sacrifice an artifact: Add .

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling (, Discard this card: Draw a card.)

Draw cards equal to the number of cards in your library, then put a card from your hand on top of your library. You have no maximum hand size until your next turn.

, Discard a card: Create a 1/1 green Saproling creature token. Any player may activate this ability.