Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value. (Equipment that's a creature can't equip a creature.)

When this creature enters, you may destroy target creature with power 1 or less.

Elves you control have ": Add ."
+1: Put a +1/+1 counter on up to one target Elf. Untap it. It gains deathtouch until end of turn.
0: Create a 1/1 green Elf Warrior creature token.
−6: You get an emblem with "Whenever you cast an Elf spell, it gains haste until end of turn and you draw two cards."

You may have Sakashima the Impostor enter as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has ": Return Sakashima the Impostor to its owner's hand at the beginning of the next end step."

Other Goblins you control get +1/+1.
Sacrifice a Goblin: Destroy target artifact.

, : Search your library for a Goblin permanent card, put it onto the battlefield, then shuffle.

When this creature enters, it deals damage to each opponent equal to your devotion to red. (Each in the mana costs of permanents you control counts toward your devotion to red.)

All Slivers have ": Tap target permanent."

When this creature enters, you may exile another target permanent you control, then return that card to the battlefield under its owner's control.

Choose one or both —
• Exile target artifact or creature you control, then return it to the battlefield under its owner's control.
• Return target artifact or creature card with mana value 3 or less from your graveyard to the battlefield.

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)
+1: Until your next turn, you may cast creature spells as though they had flash, and each creature you control enters with an additional +1/+1 counter on it.
−3: Create two 2/2 green Wolf creature tokens.

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

Flash
Flying
When this creature enters, you may search your library for a Faerie card, reveal it, then shuffle and put that card on top.

Graft 4 (This creature enters with four +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.)
When this creature enters, put a +1/+1 counter on each other creature you control with a +1/+1 counter on it.
: Move a +1/+1 counter from target creature you control onto this creature.

Converge — Draw X cards, where X is the number of colors of mana spent to cast this spell. Then discard two cards.

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.)
This creature attacks each combat if able.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever Nagao attacks, Samurai creatures you control get +1/+1 until end of turn.

Menace
When this creature enters, create two 1/1 black Rat creature tokens with "This token can't block."
At the beginning of your upkeep, you may sacrifice another creature. If you do, put a +1/+1 counter on this creature and exile the top card of your library. You may play that card this turn.

When this creature enters, exile it unless you discard a creature card.
When this creature dies, exile it and return target creature card from your graveyard to the battlefield.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Lifelink
If a nontoken creature an opponent controls would die, instead exile that card and create a 2/2 black Zombie creature token.
, Sacrifice another Vampire or Zombie: Put two +1/+1 counters on Kalitas.

Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.

At the beginning of your upkeep, choose one at random. Create a red and white creature token with those characteristics.
• 3/1 Human Warrior with trample and haste.
• 2/1 Human Cleric with lifelink and haste.
• 1/2 Human Rogue with haste and "When this token enters, it deals 1 damage to any target."

This creature has flying as long as you control a Dragon.
When a Dragon enters, you may return this card from your graveyard to the battlefield.

: This creature gains first strike until end of turn.

Trample
Whenever Yidris deals combat damage to a player, as you cast spells from your hand this turn, they gain cascade. (When you cast the 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.)

Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.

When this creature enters, create a 3/3 colorless Phyrexian Golem artifact creature token.
Golem creatures you control have flying.

Target creature you control gets +1/+0 until end of turn. It fights target creature you don't control.

When this creature dies, create a 1/1 green Elf Warrior creature token.
Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Draw three cards, then put a card from your hand on the bottom of your library.

Target creature you control deals damage equal to its power to target player.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

: Add X mana of any one color, where X is the number of Elves on the battlefield.

Choose one. If you control a commander as you cast this spell, you may choose both instead.
• Creatures you control gain flying, vigilance, and double strike until end of turn.
• Creatures you control gain lifelink, indestructible, and protection from each color until end of turn.

Choose one —
• Until end of turn, you gain control of target creature and it gains haste.
• Sacrifice a creature. Grab the Reins deals damage equal to that creature's power to any target.
Entwine (Choose both if you pay the entwine cost.)