Mikokoro, Center of the Sea

{T}: Add {C}.
{2}, {T}: Each player draws a card.

Exhaustion

Creatures and lands target opponent controls don't untap during their next untap step.

Mana Leak

Counter target spell unless its controller pays {3}.

Twincast

Copy target instant or sorcery spell. You may choose new targets for the copy.

Evacuation

Return all creatures to their owners' hands.

Steam Vents

({T}: Add {U} or {R}.)
As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Shivan Reef

{T}: Add {C}.
{T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

Goblin Flectomancer

Sacrifice Goblin Flectomancer: You may change the targets of target instant or sorcery spell.

Gigadrowse

Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Tap target permanent.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Sudden Impact

Sudden Impact deals damage to target player equal to the number of cards in that player's hand.

Boomerang

Return target permanent to its owner's hand.

Cerebral Vortex

Target player draws two cards, then Cerebral Vortex deals damage to that player equal to the number of cards they've drawn this turn.

Pyroclasm

Pyroclasm deals 2 damage to each creature.

Mountain

Gaze of Adamaro

Gaze of Adamaro deals damage to target player equal to the number of cards in that player's hand.

Island

Eye of Nowhere

Kami of the Crescent Moon

At the beginning of each player's draw step, that player draws an additional card.

Remand

Counter target spell. If that spell is countered this way, put it into its owner's hand instead of into that player's graveyard.
Draw a card.

Ebony Owl Netsuke

At the beginning of each opponent's upkeep, if that player has seven or more cards in hand, Ebony Owl Netsuke deals 4 damage to that player.