Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

Destroy target land.

All Sliver creatures have trample.

Shadow (This creature can block or be blocked by only creatures with shadow.)
You may choose not to untap this creature during your untap step.
Whenever this creature deals damage to an opponent, tap target creature. That creature doesn't untap during its controller's untap step for as long as this creature remains tapped.

Discard a card: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Needle Storm deals 4 damage to each creature with flying.

First strike
: This creature gains protection from the color of your choice until end of turn.

All Sliver creatures have ": This creature gets +0/+1 until end of turn."

Shadow (This creature can block or be blocked by only creatures with shadow.)
: This creature gets +1/+0 until end of turn.

: This creature deals 1 damage to target creature that was dealt damage this turn.

All Slivers have ", Sacrifice this permanent: Target player discards a card at random. Activate only as a sorcery."

Pay 3 life: Put a +1/+1 counter on this creature.

Flying
: Regenerate this creature.

Sudden Impact deals damage to target player equal to the number of cards in that player's hand.

Counter target spell.
Draw a card.

Whenever this creature attacks, it doesn't untap during its controller's next untap step.

Destroy all Islands.

: Target creature blocks this creature this turn if able.

Tap an untapped creature you control: This creature gains flying until end of turn.

Exchange control of target artifact or creature and another target permanent that shares one of those types with it. (This effect lasts indefinitely.)

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever this creature attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

Black creatures can't attack or block.

Flying
Whenever this creature blocks or becomes blocked by a creature, that creature gets +1/+1 until end of turn.

Flying
Whenever this creature becomes the target of a spell or ability, this creature gets +0/+3 until end of turn.

When this creature enters, flip a coin. If you lose the flip, return this creature to its owner's hand.

Target player reveals their hand, then you choose a card other than a basic land card from it. Search that player's graveyard, hand, and library for all cards with the same name as the chosen card and exile them. Then that player shuffles.

Flying

Flying
: This creature gets +1/+0 until end of turn.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Whenever this creature becomes the target of a spell or ability, put a -1/-1 counter on it.

When this creature enters, you gain 4 life.

This creature can't be blocked by more than one creature.

Flying
Discard a creature card: This creature gets +2/+2 until end of turn.

This spell can't be countered.
Protection from blue

: This creature deals 1 damage to target creature blocking it.