MTG

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspe...

Flying

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

Target player puts the top card of their library into their graveyard. Draw a card at the beginning of the next turn's upkeep.

[+1]: You gain 2 life. Add {U}, {R}, or {W}. Spend this mana only to cast a noncreature spell. [−2]: Draw a card, then you may discard a card. When...

Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals ...

Return all artifacts target player owns to their hand.

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspe...

Defender (This creature can't attack.) {U}: Wall of Water gets +1/+0 until end of turn.

Flying

When Man-o'-War enters the battlefield, return target creature to its owner's hand.

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Flying

Mutate {U/R}{U/R} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creatur...

Mutate {3}{R/G}{U}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the cre...

{T}: Change the text of target white enchantment you control that doesn't have cumulative upkeep by replacing all instances of one color word with ...

Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, Feedback deals 1 damage to that player.

{T}: Target snow land becomes a 2/2 creature until end of turn. It's still a land.

Flying {T}: Target creature you control with toughness 2 or less gets +1/+1 and gains flying until end of turn. When Phantasmal Mount leaves the ba...

Flying At the beginning of your upkeep, sacrifice Phantasmal Forces unless you pay {U}.

Cumulative upkeep {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for ...

Each player may discard up to three cards. Mind Bomb deals damage to each player equal to 3 minus the number of cards they discarded this way.