Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Plains

Island

Counterspell

Kismet

Artifacts, creatures, and lands your opponents control enter tapped.

Howling Mine

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

Serra Angel

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

Winter Orb

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

Swords to Plowshares

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

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.

Divine Offering

Destroy target artifact. You gain life equal to its mana value.

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Strip Mine

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

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Wrath of God

Destroy all creatures. They can't be regenerated.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Sol Ring

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Land Tax

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.