Timetwister

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

Transmute Artifact

Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle.

Barl's Cage

{3}: Target creature doesn't untap during its controller's next untap step.

Tropical Island

Black Lotus

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

Wall of Spears

Defender (This creature can't attack.)
First strike

Island

Mox Pearl

Braingeyser

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Power Artifact

Enchant artifact
Enchanted artifact's activated abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Living Wall

Defender (This creature can't attack.)
{1}: Regenerate Living Wall.

Ancestral Recall

Mountain

Sol Ring

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.

Volcanic Island

Mox Ruby

Time Walk

Mox Sapphire

Rocket Launcher

{2}: Rocket Launcher deals 1 damage to any target. Destroy Rocket Launcher at the beginning of the next end step. Activate only if you've controlled Rocket Launcher continuously since the beginning of your most recent turn.

Mox Jet

Mox Emerald

Sentinel

{0}: Change Sentinel's base toughness to 1 plus the power of target creature blocking or blocked by Sentinel. (This effect lasts indefinitely.)

Stream of Life

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.