MTG

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Giant Shark can't attack unless defending player controls an Island. Whenever Giant Shark blocks or becomes blocked by a creature that has been dea...

At the beginning of your upkeep, The Fallen deals 1 damage to each opponent and planeswalker it has dealt damage to this game.

Attacking creatures get +1/+1 until end of turn.

Cast this spell only during an opponent's upkeep. Creatures can't attack this turn.

Trample As Nameless Race enters the battlefield, pay any amount of life. The amount you pay can't be more than the total number of white nontoken p...

Nonwhite creatures get -1/-1 until end of turn.

Water Wurm gets +0/+1 as long as an opponent controls an Island.

Whenever Marsh Viper deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

As Psychic Allergy enters the battlefield, choose a color. At the beginning of each opponent's upkeep, Psychic Allergy deals X damage to that playe...

Enchant land As long as enchanted land is a basic Mountain, Goblin creatures get +1/+0. When Goblin Shrine leaves the battlefield, it deals 1 damag...

{G}, {T}, Sacrifice Scavenger Folk: Destroy target artifact.

First strike

Whenever Murk Dwellers attacks and isn't blocked, it gets +2/+0 until end of combat.

{T}, Sacrifice Living Armor: Put X +0/+1 counters on target creature, where X is that creature's converted mana cost.

{T}: Destroy target Aura attached to a creature you control.

Trample Goblin Rock Sled doesn't untap during your untap step if it attacked during your last turn. Goblin Rock Sled can't attack unless defending ...

Flying {U}{U}{U}: Regenerate Ghost Ship.

{T}: Witch Hunter deals 1 damage to target player or planeswalker. {1}{W}{W}, {T}: Return target creature an opponent controls to its owner's hand.

Green creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

{U}: Until end of turn, if you tap a land you control for mana, it produces {U} instead of any other type.

All creatures get -2/-0 until end of turn.

First strike; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with...