MTG

{T}: Add {C}. {T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

Whenever a player casts a green spell, you may pay {1}. If you do, you gain 1 life.

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

{T}, Sacrifice Urza's Bauble: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

{0}: Urza's Avenger gets -1/-1 and gains your choice of banding, flying, first strike, or trample until end of turn. (Any creatures with banding, a...

Whenever a player casts a black spell, you may pay {1}. If you do, you gain 1 life.

{5}, {T}: Create a 1/1 colorless Insect artifact creature token with flying named Wasp. (It can't be blocked except by creatures with flying or rea...

You may choose not to untap Tawnos's Weaponry during your untap step. {2}, {T}: Target creature gets +1/+1 for as long as Tawnos's Weaponry remains...

{1}, {T}, Sacrifice a creature: Skull Catapult deals 2 damage to any target.

As Shapeshifter enters the battlefield, choose a number between 0 and 7. At the beginning of your upkeep, you may choose a number between 0 and 7. ...

{4}, {T}: Create a 1/1 colorless Snake artifact creature token. It has "Whenever this creature deals damage to a player, that player gets a poison ...

{3}, {T}: Rod of Ruin deals 1 damage to any target.

Flying

Nevinyrral's Disk enters the battlefield tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

{2}, {T}: Target player puts the top two cards of their library into their graveyard.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

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...

You have no maximum hand size. If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into you...

{4}, {T}: Target creature can't be blocked this turn except by Walls.

{2}, {T}, Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles their library.

{4}, {T}: Draw a card.

Whenever a player casts a red spell, you may pay {1}. If you do, you gain 1 life.

At the beginning of your upkeep, put a time counter on Infinite Hourglass. All creatures get +1/+0 for each time counter on Infinite Hourglass. {3}...

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