Menace (This creature can't be blocked except by two or more creatures.)
Whenever one or more artifacts and/or creatures you control are put into a graveyard from the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Enchant creature
Enchanted creature gets +2/+1 and has menace.

Flying
Whenever another nontoken creature you control dies, you may pay 2 life and exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and has toxic 1. (Players dealt combat damage by it also get a poison counter.)

Thunder of Hooves deals X damage to each creature without flying and each player, where X is the number of Beasts on the battlefield.

When this creature enters, you may search your library for any number of cards named Gathering Throng, reveal them, put them into your hand, then shuffle.

Whenever an enchanted creature attacks one of your opponents, it gets +2/+0 and gains trample until end of turn.
Whenever an Aura you control is put into your graveyard from the battlefield, exile it. Until the end of your next turn, you may cast that card.

This land enters tapped.
Indestructible
: Add or .

When this creature enters, target creature an opponent controls can't attack or block until your next turn.
, Exile this card from your hand: Target land gains ": Add , , or " until this card is cast from exile. You may cast this card for as long as it remains exiled.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
: This creature gets +1/+0 until end of turn.

When this Case enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
To solve — There are five colors among permanents you control. (If unsolved, solve at the beginning of your end step.)
Solved — At the beginning of combat on your turn, target creature you control gains flying, double strike, and vigilance until end of turn.

Kithkin spells and Soldier spells you cast cost less to cast.

When this creature enters, draw a card.
Whenever you cast a creature spell, you may pay . If you do, return this card from your graveyard to your hand.

, : Target attacking creature gets +2/+0 until end of turn. When that creature leaves the battlefield this turn, sacrifice this artifact. If the creature deals damage to a creature this turn, the creature dealt damage can't be regenerated this turn. If a creature dealt damage by the targeted creature would die this turn, exile that creature instead.

At the beginning of your upkeep, you may put a verse counter on this enchantment.
, Sacrifice this enchantment: Destroy up to X target nonblack creatures, where X is the number of verse counters on this enchantment. They can't be regenerated.

Raid — When this creature enters, you lose 4 life unless you attacked this turn.

Put target artifact, creature, or enchantment on top of its owner's library.

Whenever you attack with two or more Spiders, put a +1/+1 counter on Spinneret and Spiderling.
Whenever Spinneret and Spiderling deals 4 or more damage, exile the top card of your library. Until the end of your next turn, you may play that card.

(: Add .)

As long as you control eight or more lands, this creature gets +4/+4 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

This creature enters with a +1/+1 counter on it.
Paradox — Whenever you cast a spell from anywhere other than your hand, double the number of +1/+1 counters on this creature.