Spooky20

If you cast a spell this turn, you can't attack with creatures. If you attacked with creatures this turn, you can't cast spells. Whenever chaos ens...

When you planeswalk to Quicksilver Sea and at the beginning of your upkeep, scry 4. (Look at the top four cards of your library, then put any numbe...

If an effect would create one or more tokens, it creates twice that many of those tokens instead. If an effect would put one or more counters on a ...

Whenever a creature deals damage to one or more players for the first time each turn, put a +1/+1 counter on it. Whenever chaos ensues, each creatu...

Whenever a creature leaves the battlefield, its controller draws a card. Whenever chaos ensues, return target creature you control to its owner's h...

Any time you could cast a sorcery, you may exile a nonland card from your hand with X time counters on it, where X is its mana value. If the exiled...

Creatures with flying get +2/+0. Creatures without flying get -2/-0. Whenever chaos ensues, target creature gains flying until end of turn.

Instant and sorcery spells have rebound. (The spell's controller exiles the spell as it resolves if they cast it from their hand. At the beginning ...

All lands have "{T}: Add one mana of any color." Whenever chaos ensues, reveal the top three cards of your library. Put all land cards revealed thi...

Players play with the top card of their libraries revealed. You may play lands and cast spells from the top of any player's library. Whenever chaos...

At the beginning of your end step, if you have no cards in hand, draw seven cards. Whenever chaos ensues, discard your hand.

Whenever a white creature dies, return it to the battlefield under its owner's control at the beginning of the next end step. Whenever a nonwhite c...

Players may cast enchantment spells as though they had flash. Whenever chaos ensues, destroy target creature that isn't enchanted.

When you planeswalk to Aretopolis and at the beginning of your upkeep, put a scroll counter on Aretopolis, then you gain life equal to the number o...

No more than one creature can attack each combat. No more than one creature can block each combat. Whenever chaos ensues, Astral Arena deals 2 dama...

All creatures have exalted. (Whenever a creature attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents its c...

Whenever a creature enters, it gains double strike and haste until end of turn. Whenever chaos ensues, exile target nontoken creature you control, ...

Creatures without flying or islandwalk can't attack. Whenever chaos ensues, until a player planeswalks, you can't lose the game and your opponents ...

When you planeswalk to Cliffside Market and at the beginning of your upkeep, you may exchange life totals with target player. Whenever chaos ensues...

If a creature you control would untap during your untap step, put two +1/+1 counters on it instead. Whenever chaos ensues, untap each creature you ...

Whenever a player taps a permanent for mana, that player adds one mana of any type that permanent produced. Whenever chaos ensues, target player ca...

Red spells cost {1} less to cast. Green spells cost {1} less to cast. Whenever chaos ensues, put X +1/+1 counters on target creature, where X is th...

Whenever a player casts a spell, that player may gain 2 life. Whenever chaos ensues, you may gain 10 life.

When you planeswalk to Furnace Layer and at the beginning of your upkeep, select target player at random. That player discards a card. If that play...