Gloom

White spells cost {3} more to cast.
Activated abilities of white enchantments cost {3} more to activate.

Recall

Discard X cards, then return a card from your graveyard to your hand for each card discarded this way. Exile Recall.

Crystal Shard

{3}, {T} or {U}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

Sleep

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

Black Market

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

Gust of Wind

This spell costs {2} less to cast if you control a creature with flying.
Return target nonland permanent you don't control to its owner's hand.
Draw a card.

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Scorched Earth

As an additional cost to cast this spell, discard X land cards.
Destroy X target lands.

Ancient Tomb

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

Fervor

Creatures you control have haste. (They can attack and {T} as soon as they come under your control.)