Attunement

Return this enchantment to its owner's hand: Draw three cards, then discard four cards.

Barrin, Master Wizard

{2}, Sacrifice a permanent: Return target creature to its owner's hand.

Barrin's Unmaking

Return target permanent to its owner's hand if that permanent shares a color with the most common color among all permanents or a color tied for most common.

Betrayal

Enchant creature an opponent controls
Whenever enchanted creature becomes tapped, you draw a card.

Bazaar of Wonders

When this enchantment enters, exile all graveyards.
Whenever a player casts a spell, counter it if a card with the same name is in a graveyard or a nontoken permanent with the same name is on the battlefield.

Avatar of Will

If an opponent has no cards in hand, this spell costs {6} less to cast.
Flying

Bay Falcon

Arctic Merfolk

Kicker—Return a creature you control to its owner's hand. (You may return a creature you control to its owner's hand in addition to any other costs as you cast this spell.)
If this creature was kicked, it enters with a +1/+1 counter on it.

Arcane Laboratory

Each player can't cast more than one spell each turn.

Arcanis the Omnipotent

{T}: Draw three cards.
{2}{U}{U}: Return Arcanis to its owner's hand.

Back to Basics

Nonbasic lands don't untap during their controllers' untap steps.

Blockade Runner

{U}: This creature can't be blocked this turn.

Snow-Covered Island

Benthic Behemoth

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)