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All Sliver creatures have defender. All Slivers have "When this permanent enters the battlefield, draw a card."

All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (The damage is dealt before the counter is put on.)

Create two 1/1 red Goblin creature tokens. Storm (When you cast this spell, copy it for each spell cast before it this turn.)

{T}: Choose target permanent you control or suspended card you own. If that permanent or card has a time counter on it, you may remove a time count...

All Sliver creatures get +1/+1 for each other Sliver on the battlefield.

All Slivers have "When this permanent enters the battlefield, destroy target artifact or enchantment."

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

All Sliver creatures have "This creature gets +1/+1 as long as you control a Swamp." All Slivers have "{B}: Regenerate this permanent."

Destroy target nonblack creature. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it...

Echo {1}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay ...

Clockwork Hydra enters the battlefield with four +1/+1 counters on it. Whenever Clockwork Hydra attacks or blocks, remove a +1/+1 counter from it. ...

{R}, {T}, Discard a card: Destroy target blue permanent. {1}{R}, {T}, Discard a card: Jaya Ballard, Task Mage deals 3 damage to any target. A creat...

{T}: Add {C}{C}. {2}, {T}, Sacrifice Hedron Archive: Draw two cards.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell wi...

Enchant permanent Vanishing 3 (This Aura enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time coun...

Counter target spell. If the spell is countered this way, exile it with three time counters on it instead of putting it into its owner's graveyard....

Reach

As Gauntlet of Power enters the battlefield, choose a color. Creatures of the chosen color get +1/+1. Whenever a basic land is tapped for mana of t...

Whenever an opponent casts a spell, Kaervek the Merciless deals damage to any target equal to that spell's converted mana cost.

All Slivers have "Sacrifice this permanent: You gain 3 life."

Reach (This creature can block creatures with flying.) Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Reach When Penumbra Spider dies, create a 2/4 black Spider creature token with reach.

{R}, Return Grinning Ignus to its owner's hand: Add {C}{C}{R}. Activate this ability only any time you could cast a sorcery.