Master of Etherium's power and toughness are each equal to the number of artifacts you control.
Other artifact creatures you control get +1/+1.

First strike
When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card, put it onto the battlefield, then shuffle.

Discard a card: This creature gains flying until end of turn.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and can't block.

This land enters tapped.
When this land enters, sacrifice it unless you pay .
: Add one mana of any color.

Create X 1/1 white Soldier creature tokens, where X is the number of creatures on the battlefield.

Lands you control have ": Add one mana of any color."
: Add one mana of any color.

Flying
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Whenever you cast a spell with cascade, return this card from your graveyard to your hand.

Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.

Whenever Gilgamesh enters or attacks, look at the top six cards of your library. You may put any number of Equipment cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order. When you put one or more Equipment onto the battlefield this way, you may attach one of them to a Samurai you control.

Equipment and Vehicle spells you cast cost less to cast.
Jump — During your turn, Cid has flying.
, : Return target Equipment or Vehicle card from your graveyard to your hand.

, Pay 1 life: Prevent the next 2 damage that would be dealt to target creature this turn.
: Prevent the next 1 damage that would be dealt to target Cleric or Wizard creature this turn.
, Put a -1/-1 counter on a creature you control: Prevent the next 2 damage that would be dealt to target player or planeswalker this turn.

Flying
At the beginning of each combat, choose first strike, vigilance, or lifelink. Creatures you control gain that ability until end of turn.

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Creature tokens you control have haste.
Whenever one or more creatures attack, you may pay . If you do, creatures attacking your opponents and/or planeswalkers they control get +2/+0 until end of turn.

The Enigma Jewel enters tapped.
: Add . Spend this mana only to activate abilities.
Craft with four or more nonlands with activated abilities (, Exile this artifact, Exile the four or more from among other permanents you control and/or cards in your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Flying
Whenever Drana attacks, defending player chooses a nonlegendary creature card in your graveyard. You return that card to the battlefield with an additional +1/+1 counter on it. The creature is a Vampire in addition to its other types.

When Gaius van Baelsar enters, choose one —
• Each player sacrifices a creature token of their choice.
• Each player sacrifices a nontoken creature of their choice.
• Each player sacrifices an enchantment of their choice.

Flying
Whenever this creature deals combat damage to a player, that player exiles the top card of their library.
You may play lands and cast spells from among cards exiled with this creature.

Flash
Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies. Copies become tokens.)
Enchant creature
When enchanted creature dies, return it to the battlefield under your control.

Flying
Whenever you investigate for the first time each turn, investigate an additional time.