Plains

Mishra's Factory

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Island

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Regrowth

Return target card from your graveyard to your hand.

Su-Chi

Sage of Lat-Nam

Disenchant

Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Air Elemental

Birds of Paradise

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Time Walk

Tundra

Recall

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

Savannah

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Mana Drain

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Sol Ring

Tropical Island

Mox Sapphire

Counterspell

Mox Pearl

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Mana Vault

Mana Vault doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.