Prevent all combat damage that would be dealt by target creature this turn. That creature gets +0/+X until end of turn, where X is its mana value.

Choose target Wall creature. At this turn's next end of combat, destroy all creatures that were blocked by that creature this turn.

Tap target untapped creature you control. If you do, add an amount of equal to that creature's mana value.

Prevent all combat damage that would be dealt this turn.

Choose one —
• Destroy target red permanent.
• Return target Mountain to its owner's hand.

Whenever Aisling Leprechaun blocks or becomes blocked by a creature, that creature becomes green. (This effect lasts indefinitely.)

All creatures get -1/-0 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Vampire Bats gets +1/+0 until end of turn. Activate no more than twice each turn.

Counter target spell unless its controller pays .

Enchant land
Enchanted land has ": Counter target spell if it would destroy a land you control."

Counter target instant or Aura spell that targets a permanent you control.

Tap all creatures blocking target attacking creature. Prevent all combat damage that would be dealt this turn by that creature and each creature blocking it.

Enchant creature
Enchanted creature gets +2/-2.

Cast this spell only after combat.
Destroy all creatures that were blocked by target Wall this turn. They can't be regenerated. For each creature that died this way, put a creature card from the graveyard of the player who controlled that creature the last time it became blocked by that Wall onto the battlefield under its owner's control.

Choose one —
• Destroy target blue permanent.
• Return target Island to its owner's hand.

Counter target activated ability from an artifact source. (Mana abilities can't be targeted.)

Psychic Purge deals 1 damage to any target.
When a spell or ability an opponent controls causes you to discard Psychic Purge, that player loses 5 life.

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay . If the player does, they may copy this spell and may choose a new target for that copy.

Choose target Wall creature. Whenever that creature is dealt damage by an attacking creature this turn, you gain that much life.

Return to your hand all enchantments you both own and control, all Auras you own attached to permanents you control, and all Auras you own attached to attacking creatures your opponents control. Then destroy all other enchantments you control, all other Auras attached to permanents you control, and all other Auras attached to attacking creatures your opponents control.

Attach target Aura attached to a creature or land to another permanent of that type.

If Clergy of the Holy Nimbus would be destroyed, regenerate it.
: Clergy of the Holy Nimbus can't be regenerated this turn. Only your opponents may activate this ability.

Prevent all damage that would be dealt to target creature this turn.

Put X glyph counters on target creature that target Wall blocked this turn, where X is the power of that blocked creature. The creature gains "This creature doesn't untap during your untap step if it has a glyph counter on it" and "At the beginning of your upkeep, remove a glyph counter from this creature."

Prevent all combat damage that would be dealt this turn.

Target blocking Wall you control gets +10/+0 until end of combat. Prevent all damage that would be dealt to it this turn. Destroy it at the beginning of the next end step.

First strike (This creature deals combat damage before creatures without first strike.)

Enchant creature
When Venarian Gold enters, tap enchanted creature and put X sleep counters on it.
Enchanted creature doesn't untap during its controller's untap step if it has a sleep counter on it.
At the beginning of the upkeep of enchanted creature's controller, remove a sleep counter from that creature.

Flying, vigilance

Choose one —
• Target player gains X life.
• Prevent the next X damage that would be dealt to any target this turn.

Switch target creature's power and toughness until end of turn.

Counter target instant spell.

: At the beginning of your next upkeep, choose a basic land type. Giant Slug gains landwalk of the chosen type until the end of that turn. (It can't be blocked as long as defending player controls a land of that type.)