If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.

Akoum Refuge enters the battlefield tapped.
When Akoum Refuge enters the battlefield, you gain 1 life.
: Add or .

Flash
If an opponent would draw two or more cards, instead you and that player each draw a card.

You draw three cards and you lose 3 life.

At the beginning of your upkeep, each player sacrifices a non-Vampire creature.

, , Sacrifice Apprentice Necromancer: Return target creature card from your graveyard to the battlefield. That creature gains haste. At the beginning of the next end step, sacrifice it.

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.
Whenever another Cat you control attacks, you may pay . If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

Arcane Sanctum enters the battlefield tapped.
: Add , , or .

: Draw three cards.
: Return Arcanis the Omnipotent to its owner's hand.

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Equipped creature gets +6/+6.
Whenever equipped creature attacks, destroy target permanent.
Equip

, , Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle your library.

Flying, trample
Whenever a Dragon you control attacks, it gains double strike until end of turn.

Tap an untapped Wizard you control: Draw a card.

First strike
Balan, Wandering Knight has double strike as long as two or more Equipment are attached to it.
: Attach all Equipment you control to Balan.

Equipped creature gets +2/+2 and has trample and lifelink.
Equip

Whenever a creature dies, put a charge counter on Black Market.
At the beginning of your precombat main phase, add for each charge counter on Black Market.

Whenever a creature dies, put a +1/+1 counter on equipped creature. If equipped creature is a Vampire, put two +1/+1 counters on it instead.
Equip

Flying
When Bladewing the Risen enters the battlefield, you may return target Dragon permanent card from your graveyard to the battlefield.
: Dragon creatures get +1/+1 until end of turn.

: Add .
, , Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.