Search your library for a card, put that card into your hand, then shuffle.

Menace
Whenever this creature deals damage, create that many Blood tokens. (They're artifacts with ", , Discard a card, Sacrifice this token: Draw a card.")
: This creature deals 1 damage to any target.

Trample
When this creature enters, create a 5/5 green Wurm creature token with trample.

At the beginning of your end step, if you lost 2 or more life this turn, create a 2/2 black Zombie creature token.
, Exile The Book of Vile Darkness and artifacts you control named Eye of Vecna and Hand of Vecna: Create Vecna, a legendary 8/8 black Zombie God creature token with indestructible and all triggered abilities of the exiled cards.

Whenever you activate an ability of a creature, draw a card. This ability triggers only once each turn.
: Exile up to two other target nonland permanents you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

When this enchantment enters, for each opponent, exile up to one target nonland permanent that player controls until this enchantment leaves the battlefield. (Those permanents return under their owners' control.)

Goblin spells you cast cost less to cast.
Goblins you control have haste.

( can be paid with either or 2 life.)
Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Search your library for up to two basic Plains cards, exile them, then shuffle. You gain 2 life.
II, III — Put a card exiled with this Saga into its owner's hand.
IV — Whenever you attack this turn, target creature you control gets +1/+1 until end of turn for each Plains you control.

Whenever you cast an Aura, Equipment, or Vehicle spell, draw a card.

If a creature you control would connive, instead you draw a card, then that creature connives.
At the beginning of combat on your turn, target creature you control connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Enchant creature, land, or planeswalker
Enchanted permanent is a colorless land with ": Add " and loses all other card types and abilities.

When this creature enters, destroy target artifact.

: Add .
, : Add , , or .

If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead.

Landfall — Whenever a land you control enters, choose one —
• Create a 2/2 white Cat Beast creature token.
• Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn.

Lifelink
Devourer of Souls — Whenever another creature dies, put a +1/+1 counter on this creature.

When Lobelia enters, look at the top card of each opponent's library and exile those cards face down.
, Sacrifice an artifact: Choose one —
• Until end of turn, you may play a card exiled with Lobelia without paying its mana cost.
• Each opponent loses 2 life and you gain 2 life.

Flying
Morbid — At the beginning of each end step, if a creature died this turn, destroy target non-Demon creature.

As The Mimeoplasm enters, you may exile two creature cards from graveyards. If you do, it enters as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.