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Whenever a player casts a green or white spell, that player discards a card.

Discard a card: This creature gains flying until end of turn.

Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and can't block.

Morph—Discard a Zombie card. (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Whenever this creature deals damage, choose one —

• Each player loses 1 life.

• Each player gains 1 life.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Whenever this creature attacks and isn't blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, this creature assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of {colorless}C equal to the amount of mana that player lost this way.

When this creature enters, draw a card for each black creature your opponents control.

This creature can't block.

{red}R: This creature gets +1/+0 until end of turn.

Trample

Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn.

{green}G: Regenerate this creature.

When this creature enters, draw a card at the beginning of the next turn's upkeep.

At the beginning of your upkeep, if this card is in your graveyard, you may pay {1 generic}1{black}B{black}B. If you do, return it to your hand.

{1 generic}1{red}R{red}R, Sacrifice this creature: It deals 2 damage to any target.

{red}R: This creature gets +1/+0 until end of turn. Sacrifice this creature at the beginning of the next end step.

Choose one —

• Counter target spell if it's blue.

• Destroy target permanent if it's blue.

Pyroclasm deals 2 damage to each creature.

You may exile a red card from your hand rather than pay this spell's mana cost.

Pyrokinesis deals 4 damage divided as you choose among any number of target creatures.

{3 generic}3, Discard a card at random: This enchantment deals damage to any target equal to the mana value of the discarded card.

{1 generic}1{red}R, Discard a card at random: This enchantment deals 1 damage to any target.

{1 generic}1{red}R, Sacrifice this enchantment: It deals 1 damage to any target.

Whenever a player casts a spell with mana value 3 or less, this enchantment deals 2 damage to that player.

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

{green}G, {tap}↷, Sacrifice a creature: Destroy target enchantment.

Whenever this creature becomes blocked by a creature, put a -1/-1 counter on that creature.

Counter target instant or sorcery spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and exile them. Then that player shuffles.

{green}G: This creature gets +1/+1 until end of turn. Target opponent creates a 1/1 green Hippo creature token.

{white}W: This creature gains protection from black and from red until end of turn. Target opponent gains 2 life.

{blue}U: This creature gains flying until end of turn. Target opponent may draw a card.

Flash

Any player may cast Sliver spells as though they had flash.

{1 generic}1{white}W, {tap}↷: This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay {white}W to end this effect.

Enchanted creature has first strike.

{tap}↷: Add {colorless}C.

{tap}↷, Sacrifice this land: Target attacking creature without flying gets -1/-2 until end of turn.

{4 generic}4, {tap}↷: You may put a creature card from your hand onto the battlefield.

Enchant creature

Enchanted creature has "{tap}↷: This creature deals 1 damage to target player or planeswalker. You draw a card."

Flying

{blue}U: If target spell has only one target and that target is this creature, change that spell's target to another creature.

Morph {4 generic}4{blue}U (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Defender (This creature can't attack.)

{4 generic}4: Return this creature to its owner's hand. Any player may activate this ability.

Search target player's library for up to three cards with flashback and put them into that player's graveyard. Then the player shuffles.

{green}G, {tap}↷: Target land becomes a 2/2 green creature that's still a land. (This effect lasts indefinitely.)

Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on this creature.

As this creature enters, choose a color.

{tap}↷: Add {green}G.

{tap}↷: Add one mana of the chosen color.

{tap}↷: Add one mana of any color that a land an opponent controls could produce.

Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

When this creature enters, add one mana of any color.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it.

{tap}↷: Target blocking creature gets -1/-1 until end of turn.

Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn.

Vigilance

This creature gets +2/+2 for each Aura attached to it.

Destroy two target artifacts.

At the beginning of each opponent's upkeep, this creature deals X damage to that player, where X is 3 minus the number of cards in their hand.

This creature gets +1/+2 as long as an opponent controls a black permanent.

{red}R{green}G{white}W: Prevent all combat damage blue creatures and black creatures would deal this turn.

Echo {3 generic}3{white}W (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When this creature enters, you gain 5 life.

Destroy target creature with power 4 or greater.

Cycling {2 generic}2 ({2}, Discard this card: Draw a card.)

Flying, vigilance

Radiant gets +1/+1 for each other creature on the battlefield with flying.

Choose target instant or sorcery spell that targets only a single permanent or player. Copy that spell for each other permanent or player the spell could target. Each copy targets a different one of those permanents and players.

{tap}↷: Target creature loses flying until end of turn.

{black}B{black}B{black}B, {tap}↷: Target opponent reveals their hand and discards a creature card at random. Activate only during your turn.

{2 generic}2: Target black or green creature gains haste until end of turn. (It can attack and {T} this turn.)

Haste (This creature can attack and {T} as soon as it comes under your control.)

Whenever this creature blocks or becomes blocked, it gets +2/-2 until end of turn.

Flash

Haste

{2 generic}2: This creature becomes colorless until end of turn.

Rain of Blades deals 1 damage to each attacking creature.