Spooky20

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Whenever this creature deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.

This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginn...

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

You and target opponent each flip a coin. Mana Clash deals 1 damage to each player whose coin comes up tails. Repeat this process until both player...

{1}{U}, {T}: Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose c...

Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwal...

Enchant creature All creatures able to block enchanted creature do so.

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

Flying, trample At the beginning of your upkeep, sacrifice a creature other than this creature. If you can't, this creature deals 7 damage to you.

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

{T}: Add {G}.

All Forests are 1/1 creatures that are still lands.

Enchant artifact Whenever you're dealt damage, put that many vitality counters on this Aura. At the beginning of your upkeep, you may remove a vita...

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.

{G}{G}: Counter target black spell.

You have no maximum hand size. If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into you...

Lhurgoyf's power is equal to the number of creature cards in all graveyards and its toughness is equal to that number plus 1.

{T}: Untap target land.

Trample This creature enters tapped and doesn't untap during your untap step. At the beginning of your upkeep, you may sacrifice two Islands. If yo...

Enchant creature Enchanted creature has swampwalk. (It can't be blocked as long as defending player controls a Swamp.)