Menace
: Add two mana in any combination of colors. Spend this mana only to cast Dragon creature spells.
Once during each of your turns, you may cast a Dragon creature spell from your graveyard.
Whenever you cast a Dragon creature spell from your graveyard, it gains "When this creature dies, exile it."

Landfall — Whenever a land you control enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)

Flying, vigilance, toxic 2
Corrupted — At the beginning of your end step, each opponent who has three or more poison counters exiles the top card of their library face down. You may look at and play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast those spells.

As this enchantment enters, choose a creature type.
Whenever you cast a spell of the chosen type, copy that spell. (A copy of a permanent spell becomes a token.)

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Hero spells you cast cost less to cast.
Whenever you attack, look at the top four cards of your library. You may reveal a Hero card from among them and put that card into your hand. Put the rest on the bottom of your library in a random order.

The Ring tempts you. Then reveal cards from the top of your library until you reveal X land cards, where X is the number of legendary creatures you control. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.

, , Exile The Stasis Coffin: You gain protection from everything until your next turn.

Creature tokens you control get +1/+1.
When Hildibrand Manderville dies, you may cast it from your graveyard as an Adventure until the end of your next turn.

Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn.

For each creature your opponents control, create a 4/4 green Phyrexian Beast creature token. Each of those tokens fights a different one of those creatures.

Exile the top card of your library. You may play it this turn.
Whenever a source you control deals noncombat damage to an opponent, you may pay . If you do, return this card from your graveyard to your hand.

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

Activated abilities of artifacts can't be activated.

Whenever another creature you control enters, each opponent loses 1 life.

, Sacrifice this creature: Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever Krenko attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.

Landfall — Whenever a land you control enters, double the power of target creature you control until end of turn.
Warp (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

: Untap target land.

This land enters tapped. As it enters, choose a color other than red.
: Add or one mana of the chosen color.