All Sliver creatures have flying.
All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."

When this creature enters, look at the top five cards of your library. You may reveal a Spacecraft card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, put a +1/+1 counter on this creature.

: Return three target cards from an opponent's graveyard to their hand. Return target creature card from your graveyard to the battlefield.

Whenever an Equipment you control enters, you may draw a card.
Metalcraft — Equipment you control have equip as long as you control three or more artifacts.

Flying
If noncombat damage would be dealt to you, prevent that damage. You gain life equal to the damage prevented this way.
When Purity is put into a graveyard from anywhere, shuffle it into its owner's library.

Whenever Qala attacks, other attacking creatures you control get +X/+0 until end of turn, where X is the number of counters on Qala.
Whenever you gain life, put a +1/+1 counter on Qala.
: You gain 1 life.

Seismic Takedown — Whenever you cast a noncreature spell, tap target creature or land.

When this creature enters, put target creature into its owner's library just beneath the top X cards of that library, where X is the number of Plains you control.

Flying, vigilance
During your turn, describe to your opponent how Que Serra Serra is broken and unbalances the game. If you don't, sacrifice Que Serra Serra at end of turn.

When Queen Mother Ramonda enters, you become the monarch.
As long as you're the monarch, creatures with power 2 or less can't attack you.

, : This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.
Enchanted creature has first strike.

Double strike
This creature enters prepared.

All Slivers have ": This permanent deals 1 damage to target attacking or blocking creature."

Landfall — Whenever a land you control enters, this creature gains flying until end of turn and you gain 1 life.
Plainscycling

Flying, vigilance
Radiant gets +1/+1 for each other creature on the battlefield with flying.

Flying
Tap another untapped creature you control with flying: Radiant gains protection from the color of your choice until end of turn.
Partner

Flying, lifelink
Whenever this creature or another nontoken creature you control enters, venture into the dungeon. (Enter the first room or advance to the next room.)
, Discard this card: Venture into the dungeon and you gain 3 life.

Echo
When this creature enters, you gain 5 life.

When this creature enters, it connives.

, : Tap target creature. This ability costs less to activate if it targets a creature with power 3 or less.

When Rainbow Knights enter, it gains protection from a random color.
: Rainbow Knights gains first strike until end of turn.
: Rainbow Knights gets +0/+0, +1/+0, or +2/+0 until end of turn, chosen at random.

Vigilance
As long as Raksha Golden Cub is equipped, Cat creatures you control get +2/+2 and have double strike.

When this creature enters, destroy target artifact or enchantment an opponent controls.

First strike
, : Search your library for a Rebel permanent card with mana value 4 or less, put it onto the battlefield, then shuffle.

, : Search your library for a Rebel permanent card with mana value 5 or less, put it onto the battlefield, then shuffle.

, : Search your library for a Rebel permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

, : Return target Rebel permanent card with mana value 5 or less from your graveyard to the battlefield.

, : Search your library for a Rebel permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

Flying
, : Search your library for a Rebel permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.

: Target creature blocks this creature this turn if able.