Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

If an opponent controls an Island and you control a Forest, you may cast this spell without paying its mana cost.

Enchant creature
Enchanted creature has vigilance.
Sacrifice this Aura: Regenerate enchanted creature.

Flying
Whenever this creature becomes blocked, defending player discards all the cards in their hand, then draws that many cards.

Whenever a creature attacks you, it gets -1/-0 until end of turn.

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

Flying
When another creature enters, return this creature to its owner's hand.

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay ."

Whenever this creature becomes blocked, prevent all combat damage that would be dealt by it this turn.

At the beginning of each player's upkeep, this artifact deals 1 damage to that player.
: Prevent the next 1 damage that would be dealt by this artifact this turn.

When this creature enters, you may return target Mercenary card from your graveyard to your hand.

If an opponent controls a Swamp and you control a Plains, you may cast this spell without paying its mana cost.
Protection from black

Red creature spells and green creature spells cost more to cast.

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

Flying
When this creature enters, each other player may draw up to three cards.

Creatures played by your opponents enter tapped.

Whenever a creature blocks a black or red creature, the blocking creature gets +1/+1 until end of turn.

: Put target creature card from your graveyard on top of your library.

Whenever a creature dies, you gain 1 life.

Until end of turn, all creatures gain ": Tap target creature."

Destroy target land.

: This turn, creatures can't block unless their controller pays for each blocking creature they control.

Each attacking creature gets +1/+0 until end of turn for each nonbasic land defending player controls.

White creatures and blue creatures can't block.

Whenever this creature becomes blocked, you may draw a card.

: This creature gets +1/+1 until end of turn. Any player may activate this ability.
: This creature gets -1/-1 until end of turn. Any player may activate this ability.

If an opponent controls a Mountain and you control an Island, you may cast this spell without paying its mana cost.
Flying

Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.

, : This creature deals X damage to target attacking or blocking creature.

If an opponent controls a Forest and you control a Swamp, you may cast this spell without paying its mana cost.
: This creature gets +1/+1 until end of turn.

: This creature deals 1 damage to each creature with flying and each player. Any player may activate this ability.

, , Sacrifice this creature: It deals X damage to any target.

: Target unblocked attacking creature becomes blocked. Activate only during combat after blockers are declared. (This ability works on creatures that can't be blocked.)

: Target player discards a card. Any player may activate this ability but only as a sorcery.

: Target creature gains flying until end of turn. Any player may activate this ability.

Whenever a creature you control deals combat damage to an opponent, you may draw a card.