High Tide

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Mox Sapphire

Force Spike

Counter target spell unless its controller pays {1}.

Mox Ruby

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Recall

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

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Island

Mountain

Mana Short

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

Boomerang

Return target permanent to its owner's hand.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Strip Mine

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

Twiddle

You may tap or untap target artifact, creature, or land.

Volcanic Island

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Shatter

Counterspell

Sol Ring

Mana Flare

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Time Vault

Time Vault enters the battlefield tapped.
Time Vault doesn't untap during your untap step.
If you would begin your turn while Time Vault is tapped, you may skip that turn instead. If you do, untap Time Vault.
{T}: Take an extra turn after this one.

Braingeyser

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Ivory Tower

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