Spooky20

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's converted mana cost.

If an opponent who controls at least as many lands as you do would put a land onto the battlefield, that player instead puts that land onto the bat...

You and target player exchange control of the creature you each control with the highest converted mana cost. Then exchange control of artifacts th...

Whenever an opponent casts a creature spell that doesn't share a color with a creature you control, counter that spell unless that player pays {X},...

Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its converted mana cost.

If Clergy of the Holy Nimbus would be destroyed, regenerate it. {1}: Clergy of the Holy Nimbus can't be regenerated this turn. Only any opponent ma...

Put X glyph counters on target creature that target Wall blocked this turn, where X is the power of that blocked creature. The creature gains "This...

Enchant creature Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Counter target spell unless its controller pays {1}.

Counter target instant spell.

Players play with the top card of their libraries revealed.

Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's converted mana cost.

Attach target Aura attached to a creature or land to another permanent of that type.

At the beginning of your upkeep, unless you sacrifice an Island, sacrifice Elder Spawn and it deals 6 damage to you. Elder Spawn can't be blocked b...

Enchant creature {0}: Enchanted creature becomes the color or colors of your choice. Activate this ability only once each turn.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Destroy all black creatures.

When Brine Hag dies, change the base power and toughness of all creatures that dealt damage to it this turn to 0/2. (This effect lasts indefinitely.)

Enchant creature Whenever enchanted creature deals damage to you, Backfire deals that much damage to that creature's controller.

Flying

Enchant creature Enchanted creature can't be the target of spells and can't be enchanted by other Auras.

Destroy all Forests.

Defender (This creature can't attack.) Protection from black

Cast this spell only during the declare attackers step. Target creature can't be blocked this turn.