Spooky20

{W}{W}: Target attacking creature gets -1/-0 until end of turn.

Whenever a player casts a spell, if no colored mana was spent to cast it, counter that spell.

When Kiri-Onna enters the battlefield, return target creature to its owner's hand. Whenever you cast a Spirit or Arcane spell, you may return Kiri...

Whenever a creature you control dies, you may pay {1}. If you do, reveal cards from the top of your library until you reveal a creature card. Put t...

{4}{S}{S}: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous. {S} can be paid with one mana f...

{R}, {T}, Sacrifice Crater Elemental: It deals 4 damage to target creature. Formidable — {2}{R}: Crater Elemental has base power 8 until end of tur...

Flying When Foul Watcher enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) Deli...

Flying At the beginning of your upkeep, if a player controls more Wizards than each other player, the player who controls the most Wizards gains co...

Flying When Mist Raven enters the battlefield, return target creature to its owner's hand.

Selesnya Sanctuary enters the battlefield tapped. When Selesnya Sanctuary enters the battlefield, return a land you control to its owner's hand. ...

Monoskelion enters the battlefield with a +1/+1 counter on it. {1}, Remove a +1/+1 counter from Monoskelion: It deals 1 damage to any target.

Target opponent reveals their hand. You choose a nonland card from it or a card from their graveyard. Exile that card. You lose 1 life.

{T}, Discard your hand, Sacrifice Diamond Lion: Add three mana of any one color. Activate only as an instant.

{2}, {T}, Sacrifice Brainstone: Draw three cards, then put two cards from your hand on top of your library in any order.

Create a 4/4 green Beast creature token. Flashback {2}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Destroy target creature. Madness {B}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into ...

Indestructible (Effects that say "destroy" don't destroy this artifact.) Equipped creature gets +2/+0. Equip {2}

{3}, {T}: Investigate. (Create a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw a card.")

{R}, {T}: Target creature gains first strike until end of turn. {W}, {T}: Tap target creature.

Flying Whenever Emissary of Despair deals combat damage to a player, that player loses 1 life for each artifact they control.

Trample, haste When Impetuous Devils attacks, up to one target creature defending player controls blocks it this combat if able. At the beginning o...

Kicker—Return a creature you control to its owner's hand. (You may return a creature you control to its owner's hand in addition to any other costs...