Regrowth

Return target card from your graveyard to your hand.

Animate Artifact

Enchant artifact
As long as enchanted artifact isn't a creature, it's an artifact creature with power and toughness each equal to its mana value.

Time Vault

Time Vault enters 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.

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.

Black Lotus

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

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.

Twiddle

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

Flood

{U}{U}: Tap target creature without flying.

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Unsummon

Return target creature to its owner's hand.

Dragon Engine

{2}: Dragon Engine gets +1/+0 until end of turn.

Boomerang

Return target permanent to its owner's hand.

Counterspell

Forest

Tropical Island

Instill Energy

Enchant creature
Enchanted creature can attack as though it had haste.
{0}: Untap enchanted creature. Activate only during your turn and only once each turn.